Best King-Size Latex Foam Mattresses


Our review process

We've done all the hard work researching king-size latex foam mattresses. That way, you don't have to pour over confusing reviews about choosing the perfect one for you. By reading this guide, you'll have an excellent grasp on what types of mattresses are available on the market, so you can confidently buy a mattress that will ensure comfortable sleep for years to come.

Before buying a king-size latex foam mattress, you'll want to know what you should take into consideration. Moving heat away from your body, these mattresses will allow you to stay cool all night. They have pressure-point relief, providing contoured support to sensitive areas like your hips and shoulders. Featuring a breathable design, they allow air to circulate freely, which will help keep them in good shape over time. These latex foam mattresses are low VOC (volatile organic compounds), which do not emit unwanted chemicals. They are available in a number of different types of materials, giving you the choice between a variety of foam densities and comfort levels. However, they can smell a bit like chemicals initially, so you should air them out for at least 24 hours before putting sheets on. Moreover, they are expensive, so if you're searching for a more affordable mattress, you should consider something else.

These king-size mattresses measure 76" X 80" and are perfect for master bedrooms. They are ideal for couples, offering plenty of space for you to spread out. However, they are large and heavy, making them hard to move and flip. On top of that, they are not great for small spaces, since they can make the area look somewhat cluttered.

Best Overall Score
An image of Kingsdown Soft Latex Foam King-Size 16-Inch Mattress

For a better night's rest and endless comfort, opt for a Kingsdown Soft Latex Foam King-Size Mattress. This Kingsdown mattress has a 16-inch thickness, resulting in a bulky appearance. Built with a cashmere, wool cover, it will regulate body temperature and wick away moisture. Available in a king-size, this Kingsdown mattress will provide maximum bed space. With a soft comfort level, it is perfect for those who sleep on their side or back and offers a cushioned surface while still relieving specific pressure areas.

This Kingsdown mattress features a latex foam construction, resisting mold and dust mites naturally. It features a woven damask cover, providing a beautiful and tasteful element to the mattress design. This Kingsdown mattress offers pressure point relief, making it suitable for people who sleep on their stomach. With lumbar support, it decreases muscle stiffness in the morning.

    Pros
    • Soft mattress is perfect for those who naturally sleep on their sides
    • Offers lumbar support, making it an excellent choice for those who suffer with back pain or discomfort
    • Designed with pressure point relief technology to increase comfort and alleviate pain
    Cons
    • King-size can be difficult to move
    • 16-inch thickness can tend to appear disproportional in some bed frames
    • Latex foam construction may feel too "spongy" for some
Runner Up
An image of Dreamfoam Bedding Firm Latex Foam King-Size Mattress

The Dreamfoam Bedding Firm Latex Foam King-Size Mattress is ideal for people who frequently have allergies. This organic mattress has a latex foam construction, resisting mold and dust mites naturally. Featuring antimicrobial fabric, it impedes the growth of bacteria. It has a supportive design, aligning your spine horizontally when sleeping on your side. This Dreamfoam Bedding mattress features a firm comfort level, providing better balance to pressure areas that we tend to strain. Available in a king-size, it ensures that you'll have a generous amount of room to spread out and enjoy a good night's sleep. Made with hypoallergenic materials, it is ideal for those who have allergies or skin sensitivities.

    Pros
    • Firm mattress promotes a deeper sleep
    • Built with antimicrobial materials to decrease the chances of bacteria developing
    • Supportive design ensures proper spinal support and alignment
    Cons
    • King-size does not fit in compact spaces
    • Firm mattress can put painful pressure on pressure points
    • Latex foam construction might feel too "spongy" for some
For Side Sleepers
An image of Dreamfoam Bedding Firm Latex Foam King-Size Foam Base 10-Inch Mattress

The Dreamfoam Bedding Firm Latex Foam King-Size Mattress is a great option for anyone who gets very hot during the night. With a 10-inch thickness, this orthopedic mattress can sustain a lot of weight so it will stay in great condition for longer. It conforms to your body for unique comfort and support. Designed with pressure point relief technology, it is perfect for stomach sleepers. This hypoallergenic mattress has a firm comfort level, which aligns your spine properly to ensure good posture while sleeping. Available in a king-size, it ensures that you'll have a generous amount of room to spread out and enjoy a good night's sleep. It has a foam base, so all major pressure points are sufficiently supported.

This orthopedic mattress features a ventilated design, so heat and humidity are released to prevent mold or mildew. Made with hypoallergenic materials, it ensures a quality night's sleep. It features a latex foam construction, so it will naturally combat mold and dust mites. It features a bamboo cover, which keeps you cool at night. It features a soft cover, providing an added layer of comfort and protection to your mattress.

    Pros
    • Firm mattress will properly align your spine to prevent back problems
    • Comes with a bamboo cover, promoting a naturally antibacterial surface
    • Features a foam base, giving you the ideal mix of support and comfort
    Cons
    • King-size can be difficult to move
    • Firm mattress can put uncomfortable pressure on pressure points
    • 10-inch thickness doesn't provide the best support
Additional Picks
An image of Natura Sensational Sublime Latex Foam King-Size Latex ActiveFUSION Climate Control Mattress

For optimal comfort and a restful night's sleep, select the Natura Sensational Sublime Latex Foam King-Size Mattress. This Natura mattress features a latex foam construction, which combats mold and dust mites naturally. Equipped with innovative pressure point relief technology, it is good for stomach sleepers. It is designed to contour to your body to align joints to eliminate joint and back pain. This Natura mattress is available in a king-size, allowing partners to have their own individual sleeping space. It has a latex core, providing excellent air circulation by its open-cell natural structure. It is designed with a NaturaWool™ cover, helping to manage humidity within the mattress.

    Pros
    • Features a latex core, promoting spinal alignment without allowing too much sinking in the mattress
    • Contours to your body for improved comfort and support
    • Provides pressure point relief, ensuring your spine and joints are well supported in order to help with any sensitivity
    Cons
    • King-size can be difficult to move
    • Latex foam construction might feel too "spongy" for some
An image of Natura Sensational Jubilance Latex Foam King-Size Latex ActiveFUSION Climate Control Mattress

For a good night's sleep and endless comfort, select a Natura Sensational Jubilance Latex Foam King-Size Mattress. This Natura mattress contours to your body, so you will be fully supported during sleep. It has pressure point relief technology, so any pain is diminished because of crucial joint support. It has a latex foam construction, which combats mold and dust mites naturally. This Natura mattress is available in a king-size, so you have a lot of room to sleep comfortably. It has a NaturaWool™ cover, which helps to control humidity within the mattress. It is built with a latex core, providing great air circulation by its open-cell natural structure.

    Pros
    • Features a latex core, providing excellent air circulation by its open-cell natural structure
    • Contours to your body for increase comfort and support
    • Pressure point relief technology ensures that your weight is evenly distributed on the mattress and that your spine and joints are properly supported
    Cons
    • King-size can be difficult to move
    • Latex foam construction may feel too "spongy" for some
An image of Natura Caresse Dual Firm Latex Foam King-Size 10-Inch Mattress

For a better night's sleep and ultimate comfort, opt for a Natura Caresse Dual Firm Latex Foam King-Size Mattress. This Natura mattress has a 10-inch thickness, so after long periods of time it won't sag in the middle. It is available in a king-size, giving you even more room than full and queen-size mattresses. With a firm comfort level, it provides complete support of your body for restful and deep sleep.

This thick mattress features a latex foam construction, which resists mold and dust mites naturally. It has a tencel cover, which is naturally immune to dust mites and other bacteria. It has a NaturaWool™ cover, which will control moisture levels within the mattress. This Natura mattress is fire resistant, which is a safe option for your bedroom.

    Pros
    • Firm mattress provides extra support to prevent the body from sinking
    • Comes with a tencel cover, making it one of the most environmentally-friendly fabrics
    • King-size is ideal for spacious rooms with a lot of space
    Cons
    • King-size can be difficult to move
    • Firm mattress can put uncomfortable pressure on pressure points
    • 10-inch thickness doesn't provide the most support
An image of Natura Sensational Ravishing Latex Foam King-Size Latex ActiveFUSION Climate Control Mattress

For a good night's sleep and ultimate comfort, select a Natura Sensational Ravishing Latex Foam King-Size Mattress. This Natura mattress has a latex foam construction, which combats mold and dust mites naturally. Made with pressure point relief technology, it helps to relax stressed muscles and joints. Contouring to your body, it provides a unique sleeping experience by shaping to your body. This Natura mattress is available in a king-size, giving you as much space as possible. It features a NaturaWool™ cover, helping to manage humidity within the mattress. It has a latex core, providing great air circulation by its open-cell natural structure.

    Pros
    • Features a latex core, promoting spinal alignment without allowing too much sinking in the mattress
    • Contours to your body for maximum support and comfort
    • Offers pressure point relief, providing therapeutic benefits that will help you sleep more soundly and comfortably
    Cons
    • King-size can be difficult to move
    • Latex foam construction might feel too "spongy" for some
An image of IKEA MYRBACKA Medium Firm Latex Foam King-Size Mattress

The IKEA MYRBACKA Medium Firm Latex Foam King-Size Mattress is a great choice for anyone who gets overheated at night. Available in a king-size, this IKEA mattress ensures that you'll have a lot of space to spread out and enjoy a good night's sleep. It features a medium firm comfort level, helping people who suffer from back pain by properly distributing your body's weight by relieving various pressure points. Featuring a latex foam construction, it will naturally resist mold and dust mites.

This IKEA mattress is easily cleaned, making mattress upkeep more simple and less time-consuming. With a ventilated design, it will keep you cool by preventing heat retention. Made with pressure point relief technology, it minimizes tossing and turning at night. It contours to your body, which offers specialized support. This IKEA mattress is suitable to use for slatted bed bases and mattress bases.

    Pros
    • Medium firm mattress is great for people who need precise spinal alignment
    • Contours to your body for special support and comfort
    • Provides pressure point relief, decreasing tossing and turning at night
    Cons
    • King-size does not fit in compact rooms
    • Medium firm mattress can put painful pressure on pressure points
    • Latex foam construction might feel too "spongy" for some
An image of Dreamfoam Bedding Firm Latex Foam King-Size Foam Base 8-Inch Mattress

The Dreamfoam Bedding Firm Latex Foam King-Size Mattress is ideal for people who are more sensitive to allergies. This Dreamfoam Bedding mattress conforms to your body for remarkable pressure point relief. With a firm comfort level, it is great for your lower back because it protects from collapsing. It is designed with antimicrobial materials, preventing bacteria, mold, and dust mites from growing and spreading. Featuring an 8-inch thickness, it provides you with a sturdy sleeping surface that won't sag over time. This orthopedic mattress features a foam base, so all dominant pressure points are adequately supported. Available in a king-size, it ensures that you'll have a lot of space to spread out and enjoy a good night's sleep.

With a ventilated design, this orthopedic mattress encourages airflow and controls moisture. Designed with hypoallergenic materials, it is perfect for those who have allergies or skin sensitivities. This orthopedic mattress features a latex foam construction, resisting mold and dust mites naturally. It features a bamboo cover, which keeps you cool at night. This orthopedic mattress features a soft cover, providing an added layer of comfort and protection to your mattress.

    Pros
    • Firm mattress encourages a deeper sleep
    • Comes with a bamboo cover, promoting a naturally antibacterial surface
    • Features a foam base, giving you the perfect combination of comfort and support
    Cons
    • King-size does not fit in small spaces
    • Firm mattress can put painful pressure on pressure points
    • 8-inch thickness doesn't provide the best support
An image of Natura Organics EcoSoftique Ultra Plush Latex Foam King-Size Mattress

The Natura Organics EcoSoftique Ultra Plush Latex Foam King-Size Mattress is perfect for people who frequently have allergies. This organic mattress features an ultra plush comfort level, which allows for a much softer sleeping surface. It is available in a king-size, so you have a lot of room to sleep comfortably. With resistance to dust mites, it makes it an ideal choice for people who suffer from allergies.

This organic mattress decreases the environmental impact because it is made from sustainable materials. This hypoallergenic mattress features a latex foam construction, resisting mold and dust mites naturally. It offers pressure point relief, so your spine and joints are well supported to diminish any discomfort. It has a moisture barrier, which helps prevent moisture build-up.

    Pros
    • Ultra plush mattress allows for a much softer sleeping surface
    • Provides pressure point relief, decreasing pain or stiffness while sleeping
    • Moisture barrier decreases wetness build-up
    Cons
    • King-size can be difficult to move
    • Ultra plush mattress can get lumpy or sag over time
    • Latex foam construction may feel too "spongy" for some
Need Some Help Narrowing Down Your Options? Here's Some Additional Information to Consider:
Choose the Correct Firmness
Firm Mattresses

If you're trying to find a firm mattress, a king-size latex foam mattress might be a good choice for you. Firm mattresses distribute your weight properly, supporting your back and other vulnerable areas. They feature an indentation load deflection rating of 34-36 pounds and are perfect for those who tend to sleep on their back. Improving circulation, they promote deeper sleep. However, these mattresses might be uncomfortable if you're not accustomed to sleeping on firm surfaces, so it can take some time to get used to them. In addition, they can put strain on specific pressure points, including the hips and shoulders.

Ultra Plush Mattresses

Interested in getting an ultra plush mattress? A king-size latex foam mattress might be a good choice for you. These contouring support mattresses adjust to the natural curves of your body for optimal comfort. Ultra plush mattresses give you additional support to relieve any back problems or joint pain that you're experiencing. They are designed with a 14-19 pound indentation load deflection rating and are ideal for those who sleep on their sides. One downside is that they may be problematic if different people will be sleeping in the bed, causing the surface to sag if there is a drastic weight difference. Another downside is that they can become lumpy or sag with extended use, so your body won't be adequately aligned while sleeping.

Medium Firm Mattresses

If you're considering a medium firm mattress, a king-size latex foam mattress might be a good choice for you. These mattresses are good for couples where one individual who enjoys to sleep on their side and the other on their back or stomach. They have a 29-31 pound indentation load deflection rating and are perfect for those who tend to move from their back to sides when sleeping. They allow for proper weight distribution, supporting your back and joints in addition to other vulnerable areas. Something to keep in mind is that they are more likely to sink in over time, so they will become less supportive and comfortable with prolonged use.

Mattress Thickness: What to Know Before You Decide on Your King-Size Latex Foam Mattress
6-8 Inch Mattresses

There are only two king-size latex foam mattresses with a thickness of 6-8 inches. These 6-8 inch mattresses can be carried easily due to their compact construction. They are ideal for trundle beds due to their slim build, which will be convenient for guests. They are suitable to use with standard-size sheets, so it will be easy to find sheets that fit properly. One downside is that these mattresses tend to wear out quickly, so they will need to be replaced more frequently. On top of that, they can get indentations if there's too much weight put on them, so if you're looking for a mattress for a couple, they're not the best choice for you. Look at this awesome king-size latex foam mattress if a mattress with 6-8 inch thickness is what you're looking for.

8-10 Inch Mattresses

Looking for a king-size latex foam mattress that's not too thick or thin? Check out an 8-10 inch mattress such as this one. Designed with a standard thickness, these thick mattresses will fit in most bed frames. They are less likely to sag, so the surface will remain flat to ensure adequate support over time. They are suitable to use with standard-size sheets, so it will be easy to find sheets that fit properly. However, these mattresses wear out quickly, so they will need to be replaced more often. In addition, they provide less support than other types of mattresses, so if you suffer from joint or back pain, then you should consider a thicker mattress. These are a few facts to help you decide what kind of king-size latex foam mattress is ideal for you.

10-12 Inch Mattresses

There's only one king-size latex foam mattress with a thickness of 10-12 inches. Featuring a standard thickness, these thick mattresses will fit in most bed frames. They are suitable to use with standard-size sheets, so it will be easy to find sheets that fit properly. They are less likely to sag, so the surface will remain flat to ensure adequate support over time. They are built with a strong design, so they can sustain more weight than other types of mattresses. However, they are higher off the ground than thinner mattresses, so they are harder to get into and out of. These are just a few facts to help you decide what kind of king-size latex foam mattress is ideal for you.