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The 14 Best King Size Mattresses to Buy in 2019

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The first thing that will strike you when you start shopping for a king size mattress is simply the vast array of choices available. Choice can be a great thing, as it means there is quite literally something for everyone.

However, for many people, this array can be as daunting as it is exciting. If you want to get the best king size bed for the money, it can be tough to know which option to go for. These are our recommendations for the best king size mattresses of 2019.

Top Rated King Size Mattresses to Buy in 2019

King bed mattress models are a popular choice because they allow you much more space to stretch out in bed and really get comfortable. If you have to share your sleeping space with a fidgety partner, then you’ll know how valuable a bit of extra space can really be.

In reality, buying a good king size mattress should be no more stressful than shopping for any other bed. The key is to know what factors are important to you, so you can choose the very best option for your personal needs.

To help you on your journey to the best king size mattress, we’ve compiled a handy buyer’s guide with all you need to know to choose the mattress of your dreams. Later on, you’ll find our top 14 amazing king size beds with expert reviews, so you can shop armed with all the knowledge you need to choose between different makes and models.

 How to Choose Your Brand New King Size Mattress?

Now that you’re familiar with the different types of king size mattresses, it’s time to work out exactly which mattress will be the best option for you. It’s important to give this decision plenty of consideration. The right mattress can provide you with many years of comfortable and healthy sleep, and can even improve back or joint pain if you suffer from it.

That said, the wrong mattress can also worsen or even cause night time aches and pains, and can seriously disturb your slumber. As you can see, choosing the most comfortable king size mattress is a decision not to be taken lightly.

What is the best king size mattress on the market? The truth is, the best comfortable mattress is the one that suits you best. So, read on for our expert advice to take the mystery out of buying a king size bed.

Consider your sleeping position

Believe it or not, the pose in which you catch forty winks makes a difference when it comes to selecting the right mattress for you. Why does sleeping position matter? Well, different positions put pressure on different parts of your body. So, what suits a front sleeper is not necessarily right for someone who sleeps on their back.

The most common sleeping position is on your side. This position is generally good for the health of your back. However, it can put pressure on your hip and shoulder joints.

So, you’ll want to choose a mattress that allows your body to sink in comfortably. Memory, gel or latex foam mattresses are ideal as they conform to your body, but spring mattresses can also be suitable. As long as the bed is soft to medium, this should allow your body to sink in adequately.

Back sleeping requires a firmer mattress to support your spine into a healthy alignment. Any medium-firm to firm mattress can be suitable, however, latex provides an especially good level of firmness. Stomach sleepers are already in a position that is, unfortunately, not very healthy for the spine or joints. If you sleep on your stomach, you’ll need a firm to very firm mattress to give you the support you need.

Do you and your partner sleep in different positions? This can be a challenging conundrum if one person sleeps in a very different way to the other. In this situation, it’s often best to opt for a ‘universal comfort’ mattress. These mattresses are just the right firmness to suit the vast majority of sleepers.

Also, you may be able to find a mattress model that allows you to customize it by selecting a different firmness for each side of the bed. However, bear in mind that these are likely to cost more.

Work out which firmness you need

As we mentioned above, which firmness you need depends largely on your sleeping position. Back and front sleepers require firmer mattresses, while side sleepers will need a soft to medium mattress to reduce pressure on their shoulders and hips.

Another factor to bear in mind is whether you suffer from back pain. You may have been told that back pain sufferers need an extremely firm mattress, often referred to as an orthopedic mattress.

However, this isn’t usually necessary. A medium-firm king size mattress to firm mattress should give you the support you need to encourage your spine into a healthy alignment and reduce pain.

If you and your partner have two differing needs in terms of firmness, you have two options available. You could either buy a universal comfort mattress, designed to feel comfortable for most people, or choose a mattress where you can customize each side to each partner’s personal needs.

Durability

For most people, a new mattress represents a major investment. Even if you buy one of the best affordable king size mattress options, it stands to reason that you’ll want to get as much use out of it as possible before you need to replace it. So, finding a mattress with longevity is an important consideration.

So, how do you choose a durable mattress? In general, some types of mattress are more durable than others. As a rule, spring mattresses tend to sag earlier than foam mattresses.

However, you can prolong the life of a spring mattress by flipping and rotating it at regular intervals so one area of the mattress doesn’t suffer excessive wear.

Nowadays, thanks to the internet, it’s pretty easy to check out expert and user reviews to find out if a mattress is durable. This is definitely something to check out before you make a purchase.

Breathability

Some types of mattress are generally more breathable than others. This is an important factor to look out for as breathable mattresses are better at maintaining a comfortable temperature. That’s because heat can escape from the bedding during the night.

Spring mattresses are a good bet in terms of breathability because they have a lot of air spaces. On the other hand, traditional memory foam tends to sleep hot. That being said, many manufacturers are being smart about using methods to cool down foam mattresses such as incorporating air channels.

So, it is possible to buy a king size bed with memory foam mattress and still stay cool at night. Be sure to check out whether a particular mattress sleeps hot before you commit to buying.

Certifications

Unfortunately, many of the foams used in mattresses are made using potentially dangerous chemicals. These can release gases into the air around you as you sleep, and can damage your health. This is of particular concern for young children or people with existing respiratory problems. However, nobody wants to be inhaling anything that could make them sick.

So, how can you avoid these nasties in your bedding? The answer is to look for a mattress that has been certified to state that it is made without the use of toxic chemicals. Two key certifications are the Certi-Pur or GREENGUARD certifications. These are independent bodies that inspect mattresses rigorously to make sure they conform to strict safety standards in terms of toxin emissions. You could also consider purchasing an organic mattress, which must be made without chemicals that could harm people or the environment.

Bed frame compatibility

If this is your first king size mattress, then you’ll be buying a new bed frame in any event. However, if you already own a king size bed and are simply replacing your mattress, you’ll need to make sure that the mattress you’re considering is compatible with your existing frame.

It’s also worth checking out if you will need a box spring in addition. It’s especially important to check out mattress compatibility if you have an adjustable bed frame, as many mattresses can’t be used with these types of bed.

Depending on the type of bed frame you plan to use, you may also want to check that the mattress you’re buying has a non-slip underlayer. That’s because, if the surface of your frame is very smooth, your mattress could shift position during the night or while you’re climbing in and out of bed.

Warranty

Whenever you’re buying a high-value item like a mattress, it’s important to check that it comes with a suitable warranty. This should cover any manufacturing faults that come to light within a specified period of time. You should find out whether the manufacturer will repair or replace the mattress in the event of such a fault occurring, and who would bear the cost of returning the mattress.

The industry standard warranty length is around 10 years, which should cover the expected life of the mattress. However, many manufacturers are offering more generous warranty lengths, with some even offering ‘forever’ warranties that last indefinitely. It’s a good idea to check the length of the warranty to check that you’re happy with it.

Sleep Trials

Although you might not have heard of them before, sleep trials are big news if you’re buying a mattress online. So, what’s a sleep trial? When you purchase a mattress, many companies allow you to return the mattress within a specified period if you’re not satisfied with it for any reason and receive a refund.

This is particularly important if you have purchased your mattress over the internet without trying it out first, as it’s impossible to know for certain whether you will enjoy sleeping on your new bed. As a bare minimum, we recommend that you look for a mattress offering at least a 30-night trial so that you can be sure you’re happy.

It’s worth checking out whether you or the mattress company will bear the cost of returning the mattress in the event that you’re dissatisfied, as shipping a large item like a mattress can be extremely expensive. You may also want to know what the manufacturer intends to do with any returned mattresses. Fortunately, most companies donate any returns to good causes.

Special features

Some mattresses have extra features to recommend them that make them unique. For example, some mattresses have special ‘zoned’ support areas to support the lumbar area. This can be helpful for those with back pain. Similarly, some mattresses are infused with substances such as charcoal or even green tea to make them more breathable, durable or hygienic. These features can be a great bonus and are more than worth your while finding out about.

Some mattresses even come with great freebies such as free memory foam pillows. Whilst this probably won’t be a deciding factor, it can be a nice bonus.

14 Best King Size Mattress Reviews

Now you know how to choose the best king size mattress for your needs, it’s time to check out our very favorite king size mattresses available in 2019. We’ve made a detailed king size mattress comparison, so you can see how different makes and models measure up. Whether you’re looking for the best value king size mattress or looking to splash out on a premium product, we’ve reviewed a wide range to suit each and every budget.

1. Signature Sleep 12-Inch Memory Foam Mattresses

As a leading brand best selling king size mattress models, Signature Sleep has earnt themselves a place at the top of our list of the best king bed mattresses in 2019. Why do we love it so much? First of all, Signature Sleep has a well-established reputation for making top king mattress models that you can trust. This particular mattress is expertly designed to contour to the unique curves and contours of your sleeping body. Therefore, it gives an outstanding level of support whilst reducing uncomfortable pressure on your body while you snooze.

Even better, this mattress scores well when it comes to breath-ability and sleeping cool thanks to its breathable construction. Let’s take a closer peek at the features of this awesome mattress in more detail.

Key features

4-inch memory foam top layer: The top layer of the Signature Sleep memory foam mattress is made from highly adaptable memory foam. The advantage of this is that it can adapt to your body shape in whichever position you choose to adopt while you slumber. Therefore, this makes the bed great at removing potentially painful pressure on joints, including hips and shoulders if you’re a side-sleeper, while you catch your 40 winks.

8-inch high-density base layer: The under-layer of this mattress is made from high quality and high-density foam. This provides a very supportive base layer that is firmer than the memory foam on top. This makes for a very supportive mattress, encouraging your spine into an optimum alignment while you sleep. This is great news for anyone suffering from back pain, especially at night.

Breathable cover: The Signature Sleep mattress comes with an integrated fabric cover. This is made from knit fabric that is designed to be highly breathable. Breathability in a mattress is important as it allows excess body heat to dissipate during the night, helping to keep the mattress at a cool and neutral temperature.

Pros
Adaptable foam relieves pressure
Supportive base layer
Smart shipping in compressed packaging
Certi-Pur certified
Breathable cover
Affordable price point
Cons
Fabric cover cannot be removed and cleaned

2. Snuggle-Pedic Mattress

The Snuggle-Pedic mattress is quickly establishing itself as one of the highest rated king mattress models, and for very good reason. This awesome bed is specially designed with optimal breathability in mind. In fact, Snuggle-Pedic themselves describe this bed as ‘the mattress that breathes’. Why is this breathability such a great thing? Well, it all helps to keep the mattress at a cool and comfortable temperature while you sleep. So, if you frequently struggle with sleeping hot, the Snuggle-Pedic mattress should be at the very top of your list. Made from high quality memory foam, this mattress combines excellent contouring ability with cool sleeping technology. So, let’s get a more detailed rundown of the key specs of this awesome mattress.

Key Features

Airflow transfer system: Snuggle-Pedic are so proud of their cooling technology that they’ve patented it. Tiny holes in the surface of the bed link up to air channels within the body of the mattress itself so that heat can escape while you sleep. The bamboo cover also boasts tiny air vents, which also contributes towards temperature control. Therefore, this mattress has outstanding capabilities when it comes to maintaining a neutral temperature throughout the night.

Contouring upper layer: The top layer of the Snuggle-Pedic mattress can contour to your body, allowing for a comfortable night’s sleep alongside pressure relief on painful joints. This is a particular bonus if you suffer from joint pain already. Also, Snuggle-Pedic asserts that their mattress is actually easier to move around on than your average memory foam mattress.

Supportive base layer: The Snuggle-Pedic boasts a highly supportive firm base layer underneath the adaptable top layer. Therefore, this means that you can enjoy the contouring benefits of memory foam whilst still getting enough support for the health of your back and neck. Therefore, this mattress is also a good choice for back pain sufferers.

Pros
Breathable technology
Contouring top layer
Firm and supportive base layer
Certi-Pur certified
Made in the USA
Hypoallergenic
Dust mite resistant
120-night sleep trial
20 year guarantee
Cons
Some user reviews say that this mattress feels too hard to sleep on after a few hours. However, many other users disagree. It seems this comes down to personal taste, emphasising the importance of a sleep trial as what suits one person will not suit another.

3. Zinus Memory Foam 12-Inch Green Tea Mattress

Yes, you heard us right. The foam in the Zinus memory foam mattress has been infused with green tea extract. Why green tea? Well, this natural product helps to prevent bacteria and odors from building up in your mattress. Therefore, this helps to keep your mattress hygienic and fresh for as long as possible. This mattress also provides great support and contouring abilities, making it a supportive and comfortable option for those suffering from back or joint pain. So, why has this earnt its place on our best king size mattress list? Read on for everything you need to know about this awesome bed.

Key features

Green tea and castor oil infusion: The foam used to make this mattress has been infused with extracts of green tea and castor oil. Both have great anti-microbial properties, which help to prevent bacteria from flourishing in your bedding. Therefore, this can help to prolong the life of your mattress while keeping it healthy, clean and free from any unpleasant smells.

4-layered construction: The body of the mattress is constructed from 4 layers of high-quality foam, and each has a specific role to play in ensuring your comfort while you sleep. The top layer is 3 inches of memory foam, followed by 2 inches of comfort foam. These layers allow excellent contouring ability and pressure relief. Underneath is a 3.5 inch thick layer of high-density foam, and finally a 3.5 inch layer of very dense base support foam. These give a supportive foundation to the mattress and help to give adequate support to your spine while you sleep.

Medium firmness: This mattress comes in a medium firmness, which is likely to suit the sleep needs of most people. This type of firmness is particularly suitable if, like most consumers, you tend to sleep on your side for the majority of the time.

Pros
Contouring ability
Supportive
Anti-microbial
Odour-resistant
Certi-Pur Certified
10 year warranty
Cons
Some off-gassing
Only one firmness option

4. Tuft and Needle King Mattress

Tuft and Needle is one of the best rated king mattresses for back pain sufferers. are an online mattress brand that are making big waves in the industry at the moment. One key factor that makes their brand stand out from the crowd is their use of the very latest technology to ensure a comfortable and healthy night’s sleep for their customers. The brand also aims to work as efficiently as possible, which means that their cost savings benefit purchasers in the form of lower prices. The mattress is made from Tuft and Needle adaptive foam, which can contour to your body in a way not dissimilar to memory foam, but provides the familiar bounce you would associate with a spring mattress.

For this reason, the Tuft and Needle is suitable for the majority of sleeping positions. Let’s take a peek at the key product features of the Tuft and Needle mattress.

Key features

Adaptive foam: Adaptive foam can contour to your body shape, therefore reducing pressure on joints and those niggling aches and pains you may be experiencing during the night. However, many users prefer the familiar bouncy feeling of a spring mattress, and adaptive foam provides this more effectively than many standard memory foam mattresses.

Reduced motion transfer: Tuft and Needle design their mattresses to prevent motion transfer during the night. This means that you should be less able to feel the movements of your partner from your side of the bed while you sleep- great news if one of you tends to toss and turn, disturbing your sleeping bedmate!

Infused with gel and graphite: The foam used to make the Tuft and Needle mattress has been infused with gel and graphite. This dual infusion has the advantage of keeping you cool by helping to wick away excess body heat during the night. Therefore, this makes this mattress a great option for those that tend to sleep hot during the night.

Pros
Adaptive foam
Reduced motion transfer
More ‘bounce’ than regular memory foam
Cooling properties
100-night sleep trial
10-year warranty
Made in the USA
Certi-Pur Certified
Greenguard Gold Certified
Cons
Some initial off-gassing

5. Purple Mattress

At number five on our list comes the Purple Mattress, another mattress brand causing a stir in the mattress world at the moment. Purple design their mattresses specifically to aid recovery after a long and tiring day, leaving you feeling rested and rejuvenated in the morning. Therefore, this bed is a great choice for the many people nowadays who have active and full-on lifestyles. Although a bit more expensive than some of the other models on our list, many of their customers agree that the level of comfort provided by a Purple mattress makes the investment worthwhile. So, what exactly makes the Purple mattress so special?

Key features

Smart-Comfort Grids: This mattress has a unique construction, whereby contouring foam layers are laid above Purple’s Smart-Comfort Grid layer. These grids react to the amount of pressure you place on the mattress. Therefore, this allows a Purple mattress to support each individual sleeper uniquely, so the bed can adapt to your personal sleep needs.

Motion isolation: Purple have designed their mattress with reduced motion transfer in mind. Why is motion isolation so important? If you share your bed with a partner, chances are you will be aware of their movements if they toss, turn or fidget during the night. Mattresses with good motion isolation prevent this from occurring so much, so you remain unaware of night-time movements from your side.

Breathable design: There are special channels integrated into the body of the Purple mattress to encourage airflow during the night. This allows any unwanted body heat to escape through these channels, so it cannot build up within the mattress and cause discomfort or trouble with sleeping. Therefore, this mattress is a great option if you tend to sleep hot.

Pros
Provides individualised support
Breathable design
Good motion isolation
Anti-microbial
Non-toxic
Certi-Pur certified
Made in the USA
10 year warranty
100-night sleep trial
Free shipping
Cons
Some off-gassing
May not be affordable for some customers

6. Sleep Innovations Shiloh 12-Inch Memory Foam Mattress

If you’re looking for a comfortable and supportive mattress that can provide adequate support even for higher body weights, this could be the best option for you. This is great news as many memory foam mattresses are not well-equipped to be comfortable for heavier users. However, this mattress is also an ideal option for users of average body weight as well. Even better, this mattress is suitable for the vast majority of sleeping styles and positions, so it may be a good option to consider if you and your partner sleep in very different ways. So, why do we think the Shiloh mattress is so great? Here’s our rundown of this mattress’ key points.

Key features

Contouring top layer: The Shiloh mattress has a highly adaptable memory foam top layer that changes shape to fit the contours of your body while you catch some shut-eye. This helps greatly with pressure reduction on key areas of the body. Therefore, the Shiloh mattress is well worth your consideration if you suffer from pain in your joints that worsens at night.

Supportive base layer: Underneath the super-comfortable contouring top layer of memory foam is a very supportive firmer base layer. This helps to give your spine all the support it needs to keep it in a healthy alignment throughout the night. This is true even if you have a significantly higher body weight than average.

Medium firmness: A medium firmness is particularly suitable for side sleepers, but should meet the support needs of the vast majority of people and for all sleeping positions. Therefore, most people will find the firmness level of the Shiloh mattress comfortable and supportive. So, it’s a good choice for couples where each partner sleeps in a different position.

Pros
Contouring memory foam top layer
Supportive base layer
Good temperature control
Suitable for average to heavier body types
Made in the USA
20 year warranty
Cons
Less suitable for lighter-than-average body weights

7. Classic Brands 2019 Cool Gel Ultimate Gel Memory Foam 14-Inch Mattress

The next product on our list of top king size mattress models is this fantastic offering from renowned mattress manufacturer Classic Brands. If you’re looking for a memory foam mattress that includes a gel infusion, this is a fantastic option that will provide you with many nights of comfortable sleep. Why might you consider a gel memory foam mattress? Many people find gel memory foam to provide a superior level of support, and it can also help to keep you cool during even hot nights.

This mattress has a medium-plush firmness, making it a particularly suitable option for those who sleep on their sides. So, is the Classic Brands Cool Gel mattress a good choice for you? Read on to find out!

Key features

Breathable design: The memory foam used in this mattress has a cooling gel infusion. Furthermore, the foam is specially ventilated to allow the mattress to air properly during the night. This allows any excessive heat to wick away from your body during the night, keeping you at as neutral temperature as possible. Therefore, this is a great choice for people who struggle with overheating at night.

Conforming top layer: The top layer of this mattress is able to adapt to your body shape seamlessly during the night. Therefore, this helps greatly with pressure reduction whilst providing a sense of comfort while you snooze.
Supportive base layer: High-density foam forms the base layer of this mattress. This material provides a very good level of support during the night. Therefore, this can help to relieve any uncomfortable pressure on the joints whilst simultaneously helping your spine achieve as healthy alignment as possible.

Pros
Pressure relief
Good level of support
Suitable for side sleepers
Great temperature control
Very stylish and attractive design
Complimentary pillows included
Hypoallergenic
Mold, bacteria and dust mite resistant
Certi-Pur certified
10 year warranty
Can be used with an adjustable bed base
Cons
Some off-gassing

8. Perfect Cloud Elegance Memory Foam Mattress

Another fantastic option if you’re looking for a mattress with the cooling and supportive benefits of gel memory foam is the Perfect Cloud Elegance Memory Foam mattress. Perfect Cloud describes this mattress as helping to create a sense of weightlessness, which can help to alleviate muscle tension and reduce aches and pains during the night that could potentially keep you awake. The mattress is designed to suit most sleepers and sleeping positions, no matter what their body weight. So, why do we think the Perfect Cloud Elegance Memory Foam mattress could be the right choice for you? Read on for our expert analysis of the key features.

Key features

Responsive memory foam: The memory foam used to make this mattress is extremely responsive, so the bed can adapt to your needs no matter your build and whatever position you find most comfortable to sleep in. Therefore, most people will find that this mattress suits them just fine. This makes it a great option for couples with differing sleep needs.
Cooling gel infusion: Gel infusions are a great feature for those who tend to sleep hot because it helps to wick away any unwanted heat in the night. This helps to prevent potential discomfort and sleeplessness caused by overheating during the night. Therefore, this could be very helpful for customers regularly struggling with night time overheating.
Plush knitted cover: The cover on this mattress is made from a super-soft and snuggly knit fabric. This makes the mattress extremely cozy and comfy to snooze the night away on. Even better, you can remove the cover to wash it if you need to, removing the necessity for spot cleaning of the mattress.

Pros
Cooling gel layer
Super-soft removable cover
Suits most sleepers
Pressure relief
10 year warranty
30-night sleep trial if you buy on Amazon
Certi-Pur certified
Cons
Shorter sleep trial than many other brands
Some off-gassing

9. DynastyMattress 15.5-Inch Grand AtlantisBreeze Cool HD GEL Memory Foam Mattress

DynastyMattress make some of the top online gel memory foam mattresses. This popular mattress is made from extremely high-quality materials and boasts no fewer than 6 layers to provide a great level of comfort and support. The mattress has a medium firmness so, like many of the models on this list, should suit the majority of sleepers. However, we think this mattress would be a particularly good choice for the many people who prefer to sleep on their sides. The whole mattress is designed with temperature control in mind, so it’s a fantastic option for people who overheat at night. Let’s take a closer look at the most important features of this gel memory foam mattress.

Key features

Gel quilted top: The memory top layer of this mattress is infused with cooling gel and is luxuriously quilted. This creates a delightfully plush and cozy sleeping surface, whilst contouring to your body for great pressure relief. In our opinion, it’s this top layer that really makes the DynastyMattress stand out from the crowd.
Great temperature control: DynastyMattress have expertly combined gel-infused foam with specially designed airflow foam in order to create a mattress that is highly breathable. This allows heat to dissipate from the body of the mattress during the night, keeping sleepers at a cool and comfortable temperature all night long.
Supportive base layer: The bottom layer of this mattress is made from highly dense and high-quality foam. Therefore, this foam gives an extremely satisfactory amount of support while you sleep. Therefore, this can assist in alleviating any sore or painful pressure on your joints whilst at the same time giving great support to your spine. Therefore, this makes this mattress a very good choice for back pain sufferers.

Pros
Plush, luxurious top layer
Pressure relief
Good level of support
Suits most sleepers
Good temperature control
Certi-Pur certified
120-night sleep trial
Extremely generous 30 year warranty
Cons
Some off-gassing

10. Live and Sleep Resort Ultra 12-inch Medium Firm Cooling Gel Memory Foam Mattress

Another fantastic option for those hunting for the perfect gel king size mattress is the Live and Sleep Resort Ultra 12-inch mattress. Live and Sleep have an excellent reputation in the mattress industry and have devoted time and attention to creating a mattress that keeps a neural temperature during sleep. However, that is not the only area in which this mattress excels. It also provides a superior level of comfort and support, giving a user experience that Live and Sleep compare to sleeping on a cloud. Even better, this can be used on any bed frame or foundation, so there’s no need to replace your existing bed when you purchase this mattress. Let’s take a look in closer detail.

Key features

Excellent contouring: The top layers of this mattress are perfectly designed to adapt and contour to the shape of your body. Not only does this make the mattress extremely comfortable to sleep on, but it also helps to reduce and relieve pressure on any parts of your body that may be aching and painful. Therefore, you’re less likely to experience disturbed or uncomfortable sleep during the night.
Great support: The base layer of this Live and Sleep mattress is made from high quality and high density supportive foam. Therefore, this means that your back will be more than adequately supported. This type of support is vital to maintaining a healthy spinal alignment and to prevent and relieve back pain.
Temperature control: Live and Sleep have combined layers of gel-infused memory foam with high-quality airflow foam to allow for greater breathability. This means that the mattress does not accumulate excess heat during the night. Instead, it allows heat to easily escape, keeping users at as comfortable a temperature as possible throughout the entire night.

Pros
Pressure relief
Good level of support
Temperature control
Removable and washable cover
Certi-Pur certified
Free pillow included
Hypoallergenic
30-night sleep trial
20 year warranty
Cons
Sleep trial not as generous as some other brands
Some off-gassing

11. Classic Brands Mercer Pillow Top Cool Gel Memory Foam and Innerspring Hybrid 12-Inch Mattress

All things hybrid are on-trend at the moment, and mattresses are no exception. Hybrid mattresses combine the best features of two or more mattress types to give the user the best of both worlds. This fantastic Classic Brands mattress has an inner-spring core with an outer layer of gel-infused memory foam. Therefore, you get the supportive benefits of an innerspring mattress with the contouring and cooling effects of gel memory foam.

So, this may be a good choice if you are tempted to opt for memory foam but are concerned about making the transition from the more commonly used innerspring that you’re used to. This mattress is made to such a luxurious specification that it’s hard to believe the affordable price point. Let’s take a look in closer detail.

Key features

Gel memory foam upper layer: This upper layer allows the mattress to conform to the unique shape of any individual, meaning that you get the most important benefit of memory foam without going the whole hog. This helps to relieve any unwanted pressure on your joints and creates a sensation of being cradled comfortably by the mattress.
Pillow-top finish: Classic Brand has chosen to top this mattress off with a plush pillow-top finish. This gives a luxurious and opulent feel for the sleeper. Therefore, this mattress creates a super-cozy and snuggly sleeping environment, ideal for getting a long and refreshing night’s sleep.
Innerspring core: If you could take a peek inside this Classic Brands mattress, you would see that it has a traditional innerspring core. This gives a great level of support that can be very helpful in managing and preventing back pain. Furthermore, this gives a more familiar feeling of bounciness which many users miss if they switch to a regular memory foam mattress. This also helps to isolate movement from one side of the bed to the other.

Pros
Pressure relief
Plush pillow-top finish
More bounce than standard memory foam
Motion isolation
Good level of support
Breathable
Hypoallergenic
Resistant to dust mites, mold and microbes
Certi-Pur certified
10 year warranty
Cons
May be too firm for some users
Some off-gassing

12. Sweetnight 10 Inch Gel Memory Foam Mattress

If you’re looking for a gel memory foam mattress that can help to reduce or prevent back pain at night, the Sweetnight 10 Inch Gel Memory Foam mattress may be well worth your consideration. One of the stand-out features of the Sweetnight Mattress is its zoned support, which is effective in combatting back pain caused by the wrong bedding. Even better, this mattress is dual-sided, so you can flip it over and select a level of firmness that suits you.

Therefore, this is a mattress that should suit the majority of people and their needs in terms of mattress support. So, should you consider buying the Sweetnight 10 Inch Gel Memory Foam mattress? Read on for our expert opinion.

Key features

Zoned support: This mattress has zoned areas of extra support. These help to support you where you need it most in order to promote and maintain a healthy spinal position while you sleep. This can greatly help to prevent, reduce or eliminate night time back pain. Therefore, this mattress is a great option for those frequently suffering from back pain during the night.
Dual-sided: Unlike many other options on our list, this mattress boasts the added benefit of being dual-sided. While the gel side is softer, simply flip the mattress over and the other side is medium-firm. This is ideal if you’re unsure which mattress firmness you require. Furthermore, this can prove highly useful if your sleep needs change over time.
Temperature control: The gel infusion in the memory foam this mattress is made from makes it highly breathable. Therefore, this means that heat can easily escape during the night, even in warmer conditions. Therefore, this contributes to keeping your temperature at a comfortable level while you sleep.

Pros
Zoned support
Good temperature control
Dual sided for choice of firmness
Hypoallergenic
Mold, bacteria and dust mite resistant
Stain resistant cover
Suitable for any frame or foundation
10 year warranty
Certi-Pur certified
Affordable price point
Cons
Some off-gassing

13. Best Price 10-Inch Memory Foam Mattress

Also earning a place on our list of the best king size mattress 2019 is the Best Price 10-Inch Memory Foam Mattress. In fact, Best Price has really lived up to their name with this product, with a king size costing from just $284.99 on Amazon. So, it is definitely one of the best value king mattress models available. For this price tag, you’d expect to be getting a substandard product. However, this couldn’t be further from the truth. Actually, the Best Price mattress boasts many of the same great features as its more expensive counterparts but without the hefty cost to you.

Therefore, we recommend it as an ideal king size mattress for shoppers on a very tight budget. So, just how well does the Best Price 10-Inch memory foam mattress measure up? Let’s take a look at some key stats:

Key features

Pressure relief: The upper part of the Best Price mattress comprises of two elements. On top is 3 inches of memory foam, followed by a further 2 inches of very soft foam underneath. These layers work together to relieve any unwanted pressure on joints and pressure points. Therefore, this increases your overall sense of comfort whilst sleeping while reducing any aches or pains that usually worsen in the night.
Supportive lower layer: Underneath the top layers is a foundation made of 5 inches of very high-density foam. This is important as it supports your body weight while you sleep and provides a healthier sleeping surface for your back and joints. This encourages your spine into a better alignment, potentially reducing back pain and preventing new problems from occurring.
Certi-Pur certified: This mattress has been awarded the Certi-Pur seal of approval, which means that it is produced without using chemicals known to be harmful to human health. This means that you won’t be at risk of inhaling any toxins with the potential to make you unwell. Therefore, this means that this bedding is a healthy and safe choice for you and your family.

Pros
Conforming abilities
Supportive
Pressure relief system
Certi-Pur certified
10 year warranty
Non-slip design
Charcoal infusion to maintain freshness
Cons
May be too firm for some sleepers
Some users recommend the cover is not removed as this can cause the mattress to become itchy

14. Nectar King Mattress

Rounding off our list is the Nectar Mattress, another great option for those looking for a gel memory foam bed. Nectar pride themselves on creating mattresses that are a comfortable firmness for all sleepers. Furthermore, Nectar mattresses are designed with temperature neutrality in mind, so this could be an excellent choice for those that sleep hot. One of the most standout features of Nectar is their ‘forever’ warranty, which is far more generous than the industry average of around 10 years.

Nectar has been making a name for themselves in the mattress industry, and we think the aplomb is very well deserved. Let’s take a closer look.
Key features

Temperature neutral: The Nectar mattress is specially designed to be as breathable as possible. This means that heat can escape from the mattress while you catch forty winks, instead of sticking around and making things sweaty and uncomfortable. Nectar says that their mattresses stay at a comfortable temperature even in the warmest of weather. So, this could be a very suitable choice if you sleep hot.
Adaptive top layers: The top layers of the Nectar mattress are constructed from gel memory foam. This material is particularly good at molding to your body’s natural curvature. Not only does this feel extremely comfortable to sleep on, but it also relieves unnecessary pressure on joints. This can help to alleviate soreness or achy sensations while you snooze.
Firm and supportive base layer: The base of this mattress is firm and supportive, which is great news for your back. That’s because your spine can rest in a healthy position when its properly supported, which can go a long way towards relieving that chronic back pain that’s been niggling away at you.

Pros
Sleeps cool
Relieves pressure
Supportive
180-night sleep trial
‘Forever’ warranty
Certi-Pur certified
Suitable for all bed bases and foundations
2 complimentary pillows
Cons
Some off-gassing

Why choose a king size bed?

King-sized beds have boomed in popularity in recent years. Not long ago, almost all couples slept on a standard double and king size beds were considered a luxury. So, why the sudden rise in sales? The main reason for choosing a king-size is pretty obvious: you get more space to stretch out and sleep comfortably. For many couples, this extra space is a real godsend. There are several reasons why plumping for a king-size may be a good option for you:

1. The extra space

A king-sized mattress comes with a generous 76 inches in the width department. To give that figure some perspective, that’s a whole 16 inches wider than a queen mattress. Therefore, when you sleep in a king-size as a couple, that gives each partner a whopping 37 inches of bed width to call their own. Not only does that mean you can stretch out, but you’ll also be far less likely to be disturbed by your partner tossing and turning in the night. The long and short of it is, when you share with a partner, a bigger bed is usually more comfortable.

2. A touch of luxury

Many king size mattresses are made to luxurious specifications, and if you pick a thicker model you can end up with something akin to what you would expect in a 5-star hotel room.

3. Everything in proportion

If you have a large bedroom, a standard double or even a queen mattress can look oddly out of proportion in comparison to the dimensions of your bedroom. For this reason, bigger spaces often look much better with a larger bed to match. You may also feel that a king-size mattress looks in better proportion to your existing bedroom furniture than a smaller model.

4. Maximum range of options

Almost all brands and models of mattresses are available in a king size. Therefore, if this is the size mattress that you decide to go for, you can be pretty sure that you will have just about every option on the market available to you.

Disadvantages of a king size

For many people, a king-size mattress is the best option. However, there are a few drawbacks to king size mattress ownership of which you should be aware. For some people, king size is not necessarily the best way to go.

First of all, if you only have a small bedroom, then king size may not be the best direction to go in. A bed that big can really dominate a small sleeping space and can make your existing furniture look out of proportion. At worst, it can actually take up all of your existing floor space, leaving you squeezing between furniture. Of course, this is not a practical solution.

Secondly, bear in mind that changing the sheets on a king size bed can be more of a hassle than on a smaller mattress. If you don’t have someone around to help out, you may decide this is too much hard work. It can also be a real pain trying to flip a king-size mattress, and we would never recommend attempting this alone. This also applies if you plan to move your mattress from one place to another at any point.

Finally, shoppers on an extremely small budget may find that a decent king size mattress is out of their price range. After all, it stands to reason that a larger mattress will be more costly than a smaller size of the same model. So, you may decide that getting a smaller version of a higher-quality mattress is a better use of your money.

How much is a good king size mattress? That’s a tough question to answer, as there is a wide range available and some can cost thousands. However, in our review section, you’ll be able to find the best king size mattress under $1000.

King vs California King

One area where many people become confused is the difference between a king and a California King size mattress. Many people assume that a California King size mattress is simply bigger in every respect. However, this is untrue and a myth that is worth dispelling.

A king size mattress measures a whopping 75 inches in width and is 80 inches long. If it’s width you’re looking for in a mattress, then this is the best option to go for. That’s because it’s actually wider than a California King. So, it’s the best choice for couples who want to stretch out as much as possible without disturbing their bed mate.

On the other hand, the California King is narrower at 72 inches wide. However, it is significantly longer at 84 inches. Generally, these mattress types are a very good choice for people who are very tall and need the extra legroom. Bear in mind, however, that you probably won’t be as spoilt for choice when you’re shopping for a California king, as not all models come in this size.

Types of King Size Mattresses

Unless you’re completely new to the mattress shopping scene, chances are you’ve noticed that there’s a vast array of different types and models on offer. So, which is best? What is the best king size mattress? You’ll hear some people swearing by one particular type, whereas others will vehemently disagree. The truth is, all the types have pros and cons, and you’ll want to make a decision based on your own personal sleep needs. What suits one person may not suit another.
To help you get to grips with the main types of mattresses on offer, our experts have put together a quick guide to the most common varieties you’re likely to encounter on your search.

Memory Foam Mattresses

Unless you’ve been living under a rock, you’ll have heard lots about memory foam mattresses in recent years. Although originally developed by NASA for astronauts, memory foam has become an increasingly popular material of choice for making mattresses. In fact, many of the best quality king size mattress models are made from memory foam.

Memory foam is specially designed to contour to the unique shape of your body, supporting you in a way that feels quite different to a traditional innerspring. This ability to adapt to your body comes with various benefits and many people find it extremely comfortable.

However, it won’t suit everyone. So, is memory foam right for you? Let’s check out the advantages and disadvantages of this ever-popular mattress type.

Advantages
Pressure relief: A memory foam mattress can conform to your body’s curves while you sleep, relieving pressure on your joints. Why is pressure relief so important? Over time, excess pressure on your pressure points can cause aches and pains, even leading to potential joint problems over time. For this reason, memory foam mattresses can be particularly good for those with back or joint pain, or people who sleep on their sides.
Reduced motion transfer: Unlike spring mattresses, memory foam mattresses isolate movement form one side of the bed to the other very effectively. This means that you shouldn’t be too acutely aware of your partner tossing and turning during the night.
Durability: As a rule, memory foam mattresses tend to be pretty long-lasting and shouldn’t start to sag too quickly. Most do not need to be flipped, although you should check your manufacturer’s guidance to find out whether you should rotate your mattress to prolong its life.
Great range available: Nowadays, there are a vast array of mattress manufacturers making high-quality memory foam mattresses in a wide range of prices. Therefore, you’ll be spoilt for choice if you opt for this as your preferred type.
Cons
Sleeping hot: Unfortunately, traditional memory foam mattresses tend to retain heat. This can become a real problem if you live in a warm climate or tend to sleep hot anyway. However, many brands are combatting this by using means to make their mattresses more breathable, such as adding air channels or infusing their foams with copper or charcoal. Check this out before you buy to make sure your mattress keeps a comfortable temperature.
Off-gassing: Due to the chemicals used in their manufacture, memory foam mattresses can let off a funky smell when you first unpack them. This is known as ‘off-gassing’. Some people aren’t bothered by this, whereas for others it can be a real pain. For this reason, you’ll need to air out your new mattress for at least 24 hours before you sleep on it.
Can feel tricky to move around: Some people love the feeling of sinking into a memory foam mattress. However, this can make moving around in bed feel laborious, especially if you have mobility issues.

Gel Mattresses

Although less commonly used than traditional memory foam, gel mattresses have enjoyed a boom in popularity recently. Why use gel in mattresses? Well, using memory foam infused with gel can add extra support and also helps to keep the mattress cooler during the night. That’s because gel can wick away excess body heat while you sleep. Therefore, infusing mattresses with gel can help to solve some of the common grumbles with regular memory foam. So, is gel the right choice for you?
Advantages
Temperature neutral: Gel mattresses help to reduce the build-up of heat that so often happens with normal memory foam. For that reason, they can be a better choice for those that tend to sleep hot.
• Reduced motion transfer: Like regular memory foam, gel mattresses generally come with very low amounts of motion transfer. That means that you won’t be able to feel your partner fidgeting during the night.
Pressure relief: Again, in this regard, gel performs in much the same way as regular foam. As it can conform to the shape of your body, this can help to reduce pressure on your joints. Therefore, it’s a good option for reducing bedtime aches and pains.
Disadvantages
Less choice available: As gel is less commonly used, you won’t be as spoilt for choice as you would be shopping for a memory foam or traditional spring mattress. However, as the popularity of gel mattresses continues to rise, we can expect this to change as more manufacturers branch out into this area.
Off-gassing: Like memory foam, gel mattresses often let off a funny smell at first. This may not bother you. If it does, however, then you’ll need to air it out for at least a day before sleeping on it.

Latex Mattress

Nowadays, come of the best quality king size mattress models are made from latex foam. Ok, we know what you’re thinking: why on earth would you use latex to make a bed? Believe it or not, latex foam has several properties that make it ideal for mattress making. Latex foam is a supportive and adaptable material, which is able to contour to your body.

Furthermore, it’s a natural product which means it has a minimal impact on the environment. Let’s check out latex mattresses in more detail.

Advantages

Support and pressure relief: Latex foam performs well as a material for making a good quality king size mattress because it is both supportive and has the ability to conform to your body shape. This means that it encourages a healthy spinal alignment whilst relieving pressure. So, it’s a great option if you suffer from back or joint pain.
Longevity: Latex foam is a durable material, lasting many years. So, you can expect your new latex mattress to last a long time, provided you care for it properly.
Reduced motion transfer: Latex foam is very good at isolating movement from one side of the bed to the other. Therefore, you can sleep comfortably without being disturbed by movements from your partner’s side of the bed.
Disadvantages
Maybe too firm: As a rule, latex is a good material if you’re looking for the best firm king size mattress. However, for some people, latex may feel too firm to be comfortable. In the end, it all comes down to our individual needs and personal sense of comfort.
Heat retention: Latex mattresses often retain heat more easily than some other types, which can make them uncomfortable to sleep on if you already suffer from night time overheating or live in a very hot climate. However, many latex manufacturers combat this by using air channels or convoluted layers to make their mattresses more breathable.

Hybrid Mattress

Those on the hunt for good king-size beds may also want to consider hybrid mattresses. You’ve probably heard of a hybrid car, but what’s a hybrid mattress? As the name suggests, these mattresses combine more than one of the above types of mattress. Hybrid mattresses usually comprise of an innerspring core wrapped in another material such as memory or latex foam. So, it’s a ‘best of both worlds’ situation, which can be a good option if you’re torn between more than one type of mattress.

Advantages
More bounce: If you’re tempted by a foam mattress but think you may miss the familiar ‘bounce’ of an innerspring, then a hybrid mattress could be the answer. That’s because the vast majority of hybrid mattresses have an innerspring core. So, you can retain bounciness whilst enjoying the benefits of body-conforming foam.
Breathable: Provided that you’re buying a hybrid mattress with an innerspring core, this means that there are plenty of air cavities within the body of the mattress. Therefore, air can circulate, allowing heat to escape during the night. So, hybrid mattresses could be the answer if you like the idea of memory foam but want to keep cool.
Support and pressure relief: Mattresses with innerspring cores are generally very supportive, which is good for your back health. Assuming the mattress is wrapped with memory foam, gel foam or latex foam, then the mattress will also have the ability to adapt to the shape of your body. Therefore, this also helps to relieve pressure on your body during the night.

Disadvantages
Less choice available: In terms of mattresses, hybrid models are the new kids on the block. So, it stands to reason that there aren’t as many manufacturers making them as many more established types. That being said, you should still have a reasonable range of choice as hybrids are becoming more mainstream. Just don’t expect to be as spoilt for choice as if you were buying a memory foam or spring mattress.
Off-gassing: If you choose a hybrid mattress wrapped in memory foam or gel-infused foam, then you could experience some off-gassing when you unwrap your new bed. This is due to the chemicals used during manufacture. Although harmless, these can smell unpleasant, so you’ll have to air the mattress out before you sleep on it.

Spring Mattresses

Chances are, you’ve spent at least some of your life sleeping on a spring mattress. You may even be using one as your current bed. That’s because spring mattresses are the most commonly used of all the mattress varieties. Although not necessarily as hi-tech as some of the other types, the truth is many of the best quality king size mattress models are spring mattresses.

Simply put, spring mattresses use a network of metal coils to provide support to sleepers. The very cheapest of these mattresses have a system of interconnected coils, as they are inexpensive to manufacture.

However, many sleepers find these cheap spring mattresses uncomfortable and also find that they transfer movement from one side to the other very easily. More popular nowadays are mattresses with individual springs, each sewn into their own fabric ‘pocket’. So, what are the pros and cons of spring mattresses?

Advantages
Breathability: Spring mattresses have plenty of air cavities inside, allowing air to freely circulate. This means that heat can easily escape while you slumber making spring mattresses a top choice for those that sleep hot.
Lower cost: In general, spring mattresses come at a lower price than many other mattress types. However, be aware that some of the more premium brands can still come with a hefty price tag.
Familiarity: Many people are very accustomed to sleeping on a spring mattress, and like the feeling of ‘bounce’ that they give. They also do not have the ‘sinking in’ effect which can come with foam mattresses, which some people do not like.
Good support: A spring mattress gives a good level of support, which can be helpful for back pain and maintaining a healthy spinal alignment.

Disadvantages
Sagging: Spring mattresses tend to sag quicker than other types, especially if you buy a model with interconnected springs. However, you can prevent this for as long as possible by flipping and/or rotating your mattress.
Motion transfer: Unfortunately, spring mattresses with interconnected spring systems are notorious for motion transfer. This means that your movements can be felt by your partner on their side of the bed and vice versa. However, this is less problematic with pocket spring mattresses.
Heavy weight: Spring mattresses are usually heavier than other types of mattress. Whilst probably not a deal-breaker in itself, bear in mind that you will need someone to help you flip your mattress, or to help you move it from place to place.

Where should you buy a king-size mattress?

When it comes to buying a king-size mattress, you really have two choices as to where you buy. You can either buy from a regular bricks-and-mortar mattress store, or you can buy online.

If you choose to shop instore, the major advantage of this is that you get to try out mattresses before you commit. Many people do not like the idea of buying a mattress without having tested it first.

However, as many mattress store employees work on commission, you may be put under pressure to commit to a purchase. If you find a mattress you like instore, it’s a good idea to see if you can find it cheaper online before you part with your money.

Many people now prefer to shop for mattresses online. There are several reasons that this might be a good idea. First of all, you’ll have access to a wider range of products that you’ll find in store. In fact, many mattress manufacturers sell their products exclusively online. Because of the wealth of online information available, you’ll find it easier to compare king size mattresses online.

There are also good deals to be had online, as selling this way is cheaper for bed companies. So, many choose to pass on these savings to their clients. On the other hand, a disadvantage is that you won’t be able to try your mattress first.

For this reason, it’s especially important to make sure your mattress comes with a sleep trial, so you can get a refund if you find it turns out to be unsuitable.

The bottom line

As you can see, there are a whole host of awesome king size bed mattress options available. This is especially true if you are prepared to shop on the internet, and there are some great deals to be had. Whether you decide to opt for memory foam, gel, or something else, it’s important to check out expert and user reviews when you’re shopping for a king-size bed. That way you can be sure that you are getting a product that will suit your individual sleep needs and provide you with many years of comfortable snoozing. Happy shopping, and sweet dreams!