The average person spends about one-third of their entire life in bed. And, the exact type of bed that you choose can be the difference between a good night’s sleep and waking up with severe body aches and pain. That’s why you want a luxurious option for maximum comfort.
In an effort to find the best king size mattress on the market today, we researched over 40 different products on the web. We discovered that the Zinus Green Tea Memory Foam Mattress is the ideal choice based on available options, comfort, and durability. We also compiled a list of nine other king size mattresses that boast incredible features. Our goal is to help you find the perfect mattress for your needs.
Top 10 King Size Mattresses Review 2020
Our team has spent countless hours researching the best king size mattress to figure out which one reigns supreme. That means we considered several different characteristics for each mattress. Most importantly, we tried to gather a wide variety of models that boast the ideal firmness for maximal comfort. We also considered the thickness of the mattresses and prioritized the mattresses constructed of the most comfortable materials. A good warranty and durability were also important. To help you make the best purchase decision, we organized our research into a user-friendly format. You’ll find a simple table breaking down the best features of each mattress. Plus, we included the best king size mattress reviews and a comprehensive buying guide to help you make the best choice.
Our “editor’s pick” for the best king size mattress goes to the Zinus Green Tea Memory Foam Mattress. In fact, it would be hard to find a mattress quite as comfortable as this one, combining the best traits of firmness and plushness.
With a medium/plush firmness, this mattress is the perfect choice for just about anyone, regardless of whether you like to sleep on your back, side, or stomach. That’s because the multi-layer interior design with memory foam & pressure relief works to keep your body cool and your joints aligned through the night. This is great if you have pre-existing joint pain or overheat easily when you’re sleeping.
The common problem with a lot of mattresses is that they tend to smell with consistent use. That’s because they absorb your sweat and any other types of debris. What’s great about this mattress is that it’s actually infused with green tea. This keeps gross odors at bay and gives you a fresh and clean bed to fall into every night. However, it still has that specific smell when you unpack it, but it quickly disappears.
Better yet, you have the choice between four different levels of thickness when you buy this mattress. You can opt for the 6-inch model if you appreciate a low-profile design. There’s the 12-inch option if you prefer greater levels of comfort. And, there are also 8 and 10-inch options if you prefer something in-between.
The perfect combination of firm and soft
Extremely effective at keeping pressure off the joints
Very soft exterior material
Infused with green tea to prevent odors from developing
New bed smell tends to stick around for a few days after delivery
Our choice for “best value” goes to the PrimaSleep Wave Gel Infused Memory Foam Mattress. Not only are you saving yourself a ton of money, but you’re also getting a mattress that’ll help you get a better night’s sleep. That’s why this mattress is ideal if you have trouble getting comfortable on a nightly basis.
This mattress tackles your comfort from several different angles. First off, the included layer of gel can help to control your body temperature as you fall asleep. That means you won’t wake up as often in a heavy sweat or overheating. Plus, there’s an HD memory foam layer designed to reflect your body shape and provide support for years on end.
Since this is considered a firm mattress, it’s probably your best bet if you are a stomach sleeper. You can be sure that you’re sleeping flat throughout the night without uncomfortable arches in your back or joints. So, long gone are the days where you wake up with an aching back. Please notice that it feels a little firmer than advertised.
In terms of firmness, this mattress is somewhere in between medium and firm. That means you’re also getting the perfect amount of support if you’re a back sleeper without spending a ton of money for a high-quality medium mattress.
HD memory foam layer is perfect for reflecting your body shape
Fantastic choice for stomach sleepers based on firmness
Gel layer can help to keep you cool and provide breathability
The Sleep On Latex Pure Green Natural Latex Mattress is our “premium pick,” so you will be spending a little over $1,000 for this option. But, this is well worth the money considering you’re getting a mattress made of all-natural and pure materials. That means it’s safe for the environment and doesn’t expose you to any unhealthy chemicals, odors, or substances.
Another thing you’ll notice with this mattress is the superior level of support that it provides. This is a great choice if you have pre-existing neck or back pain and struggle to find a comfortable position at night. It’s truly the perfect combination of softness and firmness, so this should be at the top of your list if you have a back injury or suffer from fibromyalgia or arthritis. Unfortunately, it weighs close to 150 pounds, so you might want to have a little help to move it.
What’s also important to point out is the several different layers that make up this mattress. Most parts of the mattress are made of all-natural latex, meaning it offers incredible breathability and keeps your body temperature under control throughout the night. Plus, there’s an organic wool padding that’s soft to the touch and allows you to sink in just enough.
Great support if you have back or neck pain
Made of completely natural and safe materials
Ideal for just about any type of sleeper
Weighs close to 150 pounds, so it’s a bit difficult to transport
Some owners mentioned a rubber smell that sticks around
As the best king size mattress for back pain, we have the TUFT & NEEDLE King Mattress. Not only does it offer unmatched joint support and pressure relief, but it also receives very high user reviews. You can be sure that you’re getting a high-quality product that’ll keep you comfortable at night.
The firm design of this mattress makes it the ideal choice if you’re a stomach sleeper. But, the unique poured foam is even better for keeping the perfect temperature of your body during the night. What’s even more noticeable is that it’s just soft enough to keep excess pressure off of your hips, spine, and shoulders.
Since you’re spending a decent chunk of change on a mattress, you want to make sure that you’re getting your money’s worth. The fact that the manufacturer offers a 100-night sleep trial gives you the chance to figure that out. If you’re not pleased with the mattress, you can return it and get your money back. It’s as simple as that!
But, you won’t just be getting the mattress. That’s because you have the option to choose an 8 or 10-inch mattress that also comes with memory foam pillows. These gel-infused memory foam pillows will keep your head cool at night and provide optimal neck support. No longer do you have to flip over the pillow to the cool side. As for the drawbacks, a few people noted that the firmness seemed to wear away within a year.
Also have the option to order with included memory foam pillows
Superior temperature control
Comes with a 100-night trial to guarantee this is the best mattress for you
The support and firmness seem to wear away within a few months to a year
Our choice for the best king size memory foam mattress is awarded to the Classic Brands Cool Gel 1.0 Ultimate Gel Memory Foam Mattress. Since this is considered a plush mattress, this is going to be a good choice if you’re a side sleeper. It’s soft enough, so you don’t have to worry about your arm or leg becoming numb or tingly. Still, this may seem too soft for some.
The most important features of this mattress have to be the unmatched ventilation and superior pressure relief. This is a result of the 3-inch gel memory foam for advanced cooling and 2-inch gel support layer for ideal support. Then, there’s also the 9 inches of base material to supply you with a firm mattress that’ll ensure breathability and keep you cool.
This mattress is also considered hypoallergenic. That means it’ll keep you free from dust, mites, or any common household allergens as you sleep. You don’t have to worry about waking up in the middle of the night with severe congestion or a sneezing fit due to particles trapped in your mattress.
You can be absolutely sure that you’re getting your money’s worth when you’re buying this mattress. It actually comes with a 10-year warranty, so you can get a replacement if the mattress fails or becomes damaged naturally.
Plush, but not too soft where you’ll sink in too much
Will definitely keep you cool and comfortable with the gel layers
Even comes with 2 shredded memory foam pillows for even more comfort
The Sleep Innovations Shiloh Memory Foam Mattress is our pick for the best 12-inch king size mattress. Still, you also have the choice to purchase a 14-inch thick version instead. The 12-inch model offers a 2.5-inch top layer constructed of memory foam to conform to the natural shape of your body.
During your sleep, you’re also putting a lot less pressure on your joints. That means there’s much less of a risk that you’ll wake up in the morning with muscle or joint pain. In fact, you might even notice that your back or joint pain is suddenly gone after a week or two with this mattress. Plus, the medium firmness guarantees comfort for any sleeping style.
What’s best is that you can be sure that you’ll fall asleep as soon as your head hits the pillow. Some have even compared this mattress to sleeping on a cloud. There are a few reasons for that. Firstly, this mattress is made of a breathable material that keeps you cool and comfortable during the night. Even better is the fact that it doesn’t have that typical smell of brand new mattresses.
What you’re definitely going to like most is the fact that it’s extremely affordable as it costs only a fraction of the price of most mattresses. Additionally, you can breathe a sigh of relief, knowing that this mattress comes with an awesome 10-year warranty. According to some reviews, this model can become less comfortable as time passes.
No complaints about overheating or poor temperature control
The benefits of a high-quality mattress at an affordable price
Relieves pressure points
Will become less comfortable as the years go by
Not the best choice if you want to sink into your mattress
For people who are looking for the best king size pillow top mattress, we recommend the Classic Brands Mercer Pillow Top Mattress. This is a hybrid mattress that combines innerspring technology and memory foam material. It’s as much firmness and comfort as you can get in a mattress.
Since it’s a hybrid bed, there’s very little that you have to worry about. The breathable knit layer and gel memory foam are great at keeping you cool and ventilated during the night. Moreover, the innerspring is responsible for giving you support for years to come. The pillow top layer is just the icing on the cake, giving you a soft bed to sleep in each night.
If you have an adjustable bed frame or a platform bed, this is definitely your best option. Just make sure that you’re purchasing the correct model before placing your order. There are quite a few choices available when you purchase this mattress. As for the drawbacks, this is not suitable for people with joint pain. Also, it might seem a tad harder than you expect.
Hybrid mattress that offers all the benefits of innerspring and memory foam
Can also be used with an adjustable bed for optimal comfort
Gel-infusion can help you to keep cool during summer months
Can feel quite hard
Not a great choice if you have trouble with your joints or pressure points
The mattress we like as the best breathable king size mattress has to be the Snuggle-Pedic Original Ultra-Luxury Hybrid Mattress. In fact, the manufacturer advertises this mattress as being 100 times more breathable than other mattresses. This can keep you cool at night and reduce sweating to a minimum.
What most consumers seem to like about this product is that it’s the perfect level of firmness. You’ll notice that it’s a great fit for any sleeping position and even helps to relieve the pressure on joints and your spine. Just hop into bed, and you’ll be relaxing in no time.
What’s also pretty cool is that this mattress has a removable bamboo cover for optimal breathability and coolness. This removable cover also gives the manufacturer the chance to adjust your mattress’s layer as requested. That means you’ll end up with a slightly personalized mattress and better sleep quality.
Aside from the excellent quality and hypoallergenic features, you’ll also like the 4-month sleep trial and a 20-year warranty. You can check if this is the best mattress for you and be sure that you’re covered if anything goes wrong in the next two decades. Nevertheless, there are better options for heavy users.
4-month trial and 20-warranty to provide all the confidence you need
100 times more breathable than other mattresses on the market
You can’t go wrong with the LUCID 5-Inch Gel Memory Foam Mattress, which is our choice for the best king size mattress with a low profile. Though it seems a little thin at about 5 inches thick, this mattress will probably cost you less than $200. It can be quite hard to find a mattress of the same quality at this price.
The construction of this product makes it very thin. Moreover, it’s very easy to store, transport, and hide if need be. That’s also a result of the lightweight design, weighing barely over 40 pounds in total. All in all, this is the perfect choice with a minimalistic design.
What you’ll like most is that this mattress is hypoallergenic. That makes this an ideal choice if you struggle with springtime allergies, dust or mites. All it takes is a quick hand vacuuming, and all of the particles will suddenly be gone. No more worrying about your mattress absorbing anything that’ll irritate you.
Plus, it comes with a 10-year warranty to ensure you’re absolutely getting your money’s worth. You can’t go wrong with such an affordable product. As for negative aspects, it might seem to thick for heavier people. It also has a strong chemical smell out of the box.
One of the best ultra-thick king size mattresses is the DynastyMattress AtlantisBreeze Cool HD Memory Foam Gel Mattress. This model is an astonishing 15.5 inches thick, meaning it provides as much comfort as physically possible. That’s all thanks to the six unique layers within the mattress.
Each of the six layers plays its own role in providing you with comfort and coolness. What’s even better is that it comes with a fire barrier layer to keep you safe if a fire were to ever break out in your home.
And, since this is a medium-soft mattress, this is a solid choice if you’re more of a side sleeper or a back sleeper. It’s also a great option if you truly value a breathable and ventilated mattress to keep you cool at night. Still, don’t forget that it can be too high for some.
The 20-year warranty is just the cherry on top. Not only is this mattress comfortable and breathable, but it’s also going to last you a very long time!
Can help to reduce back pain and aches
Perfect comfort and cooling
Impressive 20-year warranty for greater confidence in your mattress
Might be too thick and high, making it hard to get in and out of
Can be too soft for some
Not all king size mattresses are the same. After all, you might value a breathable material while another person might find the firmness of the mattress to be more important. That’s why you need to know exactly what to look for when it comes to buying your new king size mattress. As we’re going over each characteristic of mattresses, think about what your preferences are and take mental note of them. This will help you to decide which of the mattresses we reviewed above is the best for your needs.
How to pick the best king size mattress?
The best way to pick your new king size mattress is by figuring out exactly what you’re looking for in your ideal mattress. Think about your answers to the following questions.
Do you prefer any mattress type (gel, memory foam, pillow top, etc.) over others?
Do you like a firm, medium, or plush mattresses?
Do you have a preference for mattress thickness?
Are there any materials you’d prefer or want to stay away from?
Do you easily overheat when you’re sleeping (in reference to cooling features)?
Do you have joint or muscle pain?
How long do you want your mattress to last?
By figuring out your answers to these questions, you can better focus on the right mattresses for you and knock a ton off of your list of “potential” mattresses.
You’ll notice that a majority of the mattresses that we reviewed above have memory foam. These mattresses are great because they actually conform to your body as you sleep. That means your spine, shoulders, and hips are much better supported and aren’t forced into an uncomfortable position.
Another common option is the gel mattress, such as the PrimaSleep Wave Gel Infused Memory Foam Mattress that we talked about above. These mattresses are made specifically for people that tend to overheat when sleeping. The infused gel helps to keep your body temperature down and improves your sleep quality.
Pillow top mattresses, such as the Classic Brands Mercer Pillow Top Mattress, are definitely softer to the touch than most other types of mattresses. They’re also pretty effective at conforming to your body as you rest at night, all for a much lower price tag.
There are also what’s known as “latex mattresses.” These have a thin layer of foam near the top of the mattress to provide optimal comfort while boasting a unique hypoallergenic design. That’s why mattresses like the Sleep On Latex Pure Green Natural Latex Mattress are great if you’re sensitive to allergens like dust or mites.
For the average person, a mattress with a medium firmness would be best. These aren’t too soft where you’ll wake up with pain, but not too firm that you can’t get comfortable.
But, think about the position you usually sleep at night. Are you a side sleeper, a stomach sleeper, or a back sleeper?
If you’re more of a back sleeper, you’ll want to choose a mattress with a firmness that’s either medium or firm. This can help you to keep your spine aligned and help you to avoid early morning back pain. The Zinus Green Tea Memory Foam Mattress is a great option for that.
As a stomach sleeper, you’ll want a more firm mattress like the LUCID 5-Inch Gel Memory Foam Mattress. If your mattress is too soft, you might create an arch in your back that might make falling asleep uncomfortable or almost impossible.
The actual thickness of your mattress will partially determine how comfortable you can get at night. Thicker memory foam mattresses usually have multiple layers that can help to keep you cool and properly supported at night.
For example, models like the LUCID 5-Inch Gel Memory Foam Mattress offer a low-profile design and are pretty easy to get in and out of. A mattress that’s this thin would be better if you’re relatively small and thin.
You’ll also find that a lot of mattresses are between 8 and 12 inches thick. These mattresses typically have several layers and are quite comfortable. This is probably the most popular range in thickness.
When you move up to 12 inches and above, you’ll be spending a bit more money and getting a more comfortable night’s sleep. But, these mattresses are a little bulky and hard to get in and out of. Still, thicker usually means more comfortable for most people.
When we talk about the materials, we’re referring to what the mattress is actually made of, from the mattress cover all the way to the layers on the inside. Here’s a look at what you might find in your mattress.
Latex: This is usually found on one of the outer layers of the mattress. Latex is often used to make a mattress hypoallergenic. Latex mattresses are the best choice if you have allergies or are sensitive to dust, mites, and dirt.
Flame retardant: All mattresses should be flame-retardant. This material can help to keep your bed from being engulfed in flames if a fire starts in your bedroom.
Polyester: This is typically found in pillow top mattresses. These mattresses are usually pretty easy to clean and don’t absorb liquids as easily as other materials.
Memory foam: You’ll find that most mattresses these days are made of memory foam material. This allows you to sink into the bed and have the mattress conform to your body shape. Look for a memory foam design if you have joint pain and aches.
Breathability and cooling
If you tend to get overheated when you sleep, you’ll want to make sure that you’re getting a king size mattress with incredible breathability. This can help to wick heat away from your body and keep your body cool as you sleep. That also means you won’t wake up as often to remove the blanket that you’re sleeping under.
However, not all mattresses offer supreme breathability. The best material to keep an eye out for is latex. This type of mattress typically has little holes all throughout the surface. This allows the hot air surrounding your body to escape while also keeping you cool and comfortable all night long. Memory foam mattresses provide a similar experience.
You’ll want to make sure that a mattress is advertised as offering cooling capabilities, especially if this is an issue for you.
The pressure relief offered by a mattress usually comes down to the firmness. This is an important thing to consider if you have joint pain, arthritis, or tend to wake up in the morning with back pain.
You’ll notice that a lot of pressure relief mattresses, such as the TUFT & NEEDLE King Mattress, are made of memory foam. That’s because memory foam actually allows you to sink into the mattress ever so slightly. This can help to reduce the pressure on all areas of your body, especially the back, hips, and shoulders.
If the pain is a relevant issue for you, you’ll want a mattress that has a medium firmness level. Too firm or too soft can both put a ton of pressure on your nerves and joints.
Considering the price that you’re paying for your brand new king size mattress, you want to make sure that you’re getting a lot of years out of it. The good news is that mattresses tend to last a good amount of time these days.
But, securing a good warranty is even better. These warranties typically mean that replacements are free if the mattress fails or becomes damaged with natural use.
The good news is that we focused on reviewing the best king size mattress under $1,000. In fact, most of the mattresses on our list are barely above $500. Let’s go over what you should expect to pay for a high-quality king size mattress these days.
On the upper end of the price scale, you have mattresses like the Sleep On Latex Pure Green Natural Latex Mattress. This will run you a little over $1,000, but you’re getting a 100% all-natural mattress that’s also quite hypoallergenic. Moreover, this model gives your body excellent support.
Then, you also have more affordable options like the LUCID 5-Inch Gel Memory Foam Mattress. This mattress, in particular, is on the brink of $200, and it will definitely impress you with its 10-year warranty and unique dual-layer technology.
There’s nothing that says that you have to spend a ton of money on your brand new king size mattress. More expensive doesn’t always mean better just as cheaper doesn’t always mean lower quality. However, you won’t have to worry about your investment if you are going to purchase a mattress that comes with a trial period.
If you prefer sleeping on your back, the ideal firmness of your king size mattress will really depend on your personal comfort preferences. But, most back sleepers seem to like a mattress that’s either medium or firm. A medium or firm mattress will help you to keep your spine, shoulders, and hips aligned properly while you sleep. With this extra support, there’s also a much lower risk of you waking up in the morning with uncomfortable feeling or pain. You can also opt for a mattress with a more comfortable top layer for a better experience.
The first thing you’ll want to do is invest in a mattress topper or a mattress cover. This can help to keep your mattress protected from spills and dirt while also keeping it odor-free for years to come. You might also want to avoid eating or drinking while in bed to avoid these spills in the first place. It’s also a good idea to rotate or flip your mattress every few months. When you’re sleeping in the same spot and same position every night, it begins to wear away, so it can lose its firmness and support. Flipping or even rotating your mattress can help to even out the wear and tear while also extending your mattress’s lifespan.
The first and easiest cleaning method is using a handheld vacuum. This is the best way to get rid of things like dirt, dandruff, and hair. If your mattress smells or has some stains, you might want to sprinkle some baking soda on first. Let it sit for a little while before vacuuming the excess baking soda up. When it comes to stains, you want to be careful about the products you’re using on your king size mattress. After all, you don’t want to ruin your mattress! You can actually mix household items like dish soap, hydrogen peroxide, and water to remove any stains. Just make sure that you’re spraying these liquids, not pouring them.
Our number one product here is the Zinus Green Tea Memory Foam Mattress. Not only does this mattress boast several interior layers and a choice between several types of thickness, but it’s also infused with green tea extract to prevent odors from developing.
We hope that this article helped you get the best king size mattress accordingly to your needs. With the products from our list, you can get a fantastic sleeping experience without having to worry about pain or discomfort.