Looking for a foam mattress king size? Have a look at this 2019 guide!

We spent many hours on research to finding foam mattress king size, reading product features, product specifications for this guide. For those of you who wish to the best foam mattress king size, you should not miss this article. foam mattress king size coming in a variety of types but also different price range. The following is the top 10 foam mattress king size by our suggestions:

Best foam mattress king size

Product Features Editor's score Go to site
Classic Brands Cool Gel and Ventilated Memory Foam 12-Inch Mattress, CertiPUR-US Certified, King Classic Brands Cool Gel and Ventilated Memory Foam 12-Inch Mattress, CertiPUR-US Certified, King
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Classic Brands Cool Gel Ultimate Gel Memory Foam 14-Inch Mattress with BONUS 2 Pillows, King Classic Brands Cool Gel Ultimate Gel Memory Foam 14-Inch Mattress with BONUS 2 Pillows, King
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Zinus Memory Foam 12 Inch Green Tea Mattress, King Zinus Memory Foam 12 Inch Green Tea Mattress, King
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Zinus 12 Inch Gel-Infused Green Tea Memory Foam Mattress, King Zinus 12 Inch Gel-Infused Green Tea Memory Foam Mattress, King
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Best Price Mattress  10-Inch Memory Foam Mattress, King Best Price Mattress 10-Inch Memory Foam Mattress, King
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Zinus Ultima Comfort Memory Foam 12 Inch Mattress,King Zinus Ultima Comfort Memory Foam 12 Inch Mattress,King
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LINENSPA 8 Inch Memory Foam and Innerspring Hybrid Mattress - King LINENSPA 8 Inch Memory Foam and Innerspring Hybrid Mattress - King
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Zinus Memory Foam 12 Inch / Premium / Cloud-like Mattress, King Zinus Memory Foam 12 Inch / Premium / Cloud-like Mattress, King
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Tuft & Needle King Mattress, Bed in a Box, T&N Adaptive Foam, Sleeps Cooler with More Pressure Relief & Support Than Memory Foam, Certi-PUR & Oeko-Tex 100 Certified , Made in USA Tuft & Needle King Mattress, Bed in a Box, T&N Adaptive Foam, Sleeps Cooler with More Pressure Relief & Support Than Memory Foam, Certi-PUR & Oeko-Tex 100 Certified , Made in USA
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LUCID 10 Inch Gel Memory Foam Mattress - Medium Feel - CertiPUR-US Certified - 10-Year U.S. Warranty - King LUCID 10 Inch Gel Memory Foam Mattress - Medium Feel - CertiPUR-US Certified - 10-Year U.S. Warranty - King
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1. Classic Brands Cool Gel and Ventilated Memory Foam 12-Inch Mattress, CertiPUR-US Certified, King

Feature

The latest in sleep technology, 2.5 inches of cool gel memory foam for temperature regulation and 3 inches of poly gel foam for breathability layered on top of 6.5 inches of high-density base foam for maximum comfort and support
Beautifully detailed waterfall edge cover with four-way stretch top and charcoal gray knit sides works with the memory foam to optimize its conforming properties
The three layers of only the highest quality gel, memory and high-density base foam work together to bring you the luxury you crave and the ultimate sleep experience you deserve
High-quality memory foam conforms to your body while the cool gel regulates temperature; memory foam is naturally antimicrobial and hypoallergenic and resistant to allergens, mold, bacteria, and dust mites and meets CertiPUR-US program standards for performance, emissions, and durability
Medium-Plush Feel and Adjustable Base Friendly
Mattress ships compressed, rolled and shipped in a box conveniently delivered to your door for easy set-up; frame/foundation/base not included
5 Star Customer Service; Available 7 days a week

Description

Get the luxury you crave and the ultimate sleep experience that you deserve with Classic Brands 12-Inch Cool Gel Memory Foam Mattress. This luxurious mattress is beautifully tailored with a knit fabric cover with waterfall edges and charcoal gray side panels. The three layers of infused cool gel, breathable poly foam and high-density base foam disperse heat to keep you comfortable all night and conform to your body reducing pressure points, so you can wake up more refreshed and ready to take on the day.

The 12-inch profile Cool Gel Mattress has Gel-Infused Memory Foam and is designed for the ultimate in comfort and support. Starting with breathable Cool Gel memory foam, this layer disperses body heat and creates a cooler sleeping surface while retaining the pressure-relieving properties of traditional memory foam. Two layers of Poly Gel-Supportive Foam provides support for the Gel Foam layer. The support base layer maintains the strength and effectiveness of all three layers. Covered with a beautifully detailed corded waterfall edge and knit sides for breathability, the 4-way stretch conforms to your body for comfort working with the top layer of gel memory foam to optimize its contouring properties.

Benefits of Gel Memory Foam
A gel memory foam mattress can support each part of the body evenly and individually. Gel Memory foam slowly and automatically adjusts to your body weight and temperature. In addition to the slow, conforming response, gel memory foam offers complete, luxurious and stress-free support. Additionally, when you do move in bed, memory foam gently 'fills in' and reshapes itself to your new sleeping posture, cradling every contour of your body.

The Latest Gel Memory Foam Technology
Gel Memory Foam is a unique material that infuses gel particles into visco-elastic memory foam, creating a plusher and cooler sleeping material. Gel memory foam is more porous or open than conventional foam meaning the cells are interconnected unlike closed cell foam; thereby is more breathable and comfortable than higher density visco-elastic foam. The open-celled physical structure of our foams is self-ventilating. Air travels throughout the material and dissipates body heat regulating your body temperature. Gel Memory foam is naturally hypoallergenic and resistant to allergens, mold, bacteria and dust mites.

Why Buy a Cool Gel Memory Foam Mattress?
Cool Gel mattresses with gel infused memory foam disperse body heat and create a cooler sleeping surface while retaining the pressure-relieving properties of traditional memory foam. Tossing and turning are dramatically diminished and disrupted sleep patterns are greatly eliminated so you can sleep longer without moving and enjoy the benefits of a deeper, more restful sleep pattern.

Adjustable Base Friendly
Classic Brands 12-Inch Cool Gel Memory Foam Mattress is adjustable base friendly, which means it is the best choice to be paired up with an adjustable base instead of a traditional bed frame for added lifestyle and health benefits. The mattress is flexible and durable enough that it will maintain the support and integrity even after bending with the adjustable base.

CertiPUR-US Certified
Classic Brands gel memory foam mattresses are CertiPUR-US Certified. The CertiPUR-US program is a voluntary testing, analysis and certification program for flexible polyurethane foam used as a cushioning material in home furnishings such as adult mattresses, crib mattresses, upholstered furniture and some accessory comfort products. Certified flexible polyurethane foams have been independently laboratory tested.

Get it Right the First Time
It is also a good idea to know the size and the height of your mattress ahead of time to make sure you are ordering the correct size. Keep in mind that you should combine the height of your bed frame, foundation, or adjustable bed base with the height of your mattress to get a gauge of the how tall your sleep system will be.

Twin Size - 39" W x 75" L x 12" H
Twin XL Size - 39" W x 80" L x 12" H
Full Size - 54" W x 75" L x 12" H
Queen Size 60" W x 80" L x 12" H
King Size 76" W x 80" L x 12" H
California King Size 72" W x 84" L x 12" H

Classic Brands Smart Packaging
Classic Brands also uses Smart Packaging. Smart packaging reduces the carbon footprint in the manufacturers shipping process. Our advanced packaging technology means we can roll-pack our mattresses and ship them at one-third of the normal size. Because of this process, we can ship more mattresses per delivery and reduce the amount of carbon emissions. A mattress that is roll-packed still retains its initial quality, as each will quickly recover and return to its original shape after being removed from its packaging.

Quality Assurance
The Classic Brands 12-Inch Cool Gel Memory Foam Mattress is backed with a 25-year worry-free warranty.

Look for more innovative specialty sleep products from Classic Brands.

2. Classic Brands Cool Gel Ultimate Gel Memory Foam 14-Inch Mattress with BONUS 2 Pillows, King

Feature

Premium pressure-relieving memory foam and high-density aerated cool gel memory foam are combined together to provide the essential support and comfort for a deeper night's sleep
76" W x 80" L x 14" H
Beautifully tailored and detailed with a stretch knit fabric cover with waterfall edge and matching knit side panels
Gel infused ventilated memory foam creates a plush and comfortable sleeping surface for a more restful night's sleep; high-density base foam relieves pressure points and conforms to your body, and provides unparalleled support during the night
High-quality memory foam conforms to your body while the cool gel regulates temperature; memory foam is naturally hypoallergenic and resistant to allergens, mold, bacteria, and dust mites and meets CertiPUR-US program standards for performance, emissions, and durability
Medium-Plush Feel with Firm Support and Adjustable Base Friendly; 10 Year Warranty
BONUS 2-Shredded Memory Foam Standard Pillows FREE!

Description

Experience cloud-like luxury with Classic Brands Cool Gel Ultimate Gel Memory Foam 14- Inch Mattress. The newest generation of memory foam and gel technology, this mattress offers a plusher and incredibly comfortable sleeping surface. Beautifully tailored and detailed with a corded waterfall edge knit cover and contrasting border. Get a more restful night's sleep on this mattress knowing that it is made of the highest quality materials without worrying about the price. Plus, mattress includes a bonus shredded memory foam pillow with plush down-like feel with twin, twin extra long, and full or two bonus pillows with queen, king, or california king sizes.

The Classic Brands 14-inch profile Ultimate Cool Gel Memory Foam Mattress is designed for comfort and support. Starting with a 2-inch top layer, which consists of breathable ventilated Cool Gel memory foam that conforms to your shape and has a faster recovery factor than conventional memory foam. A second layer of 2-inch memory foam works with the 2-inch comfort foam support layer providing you with the ultimate sleeping experience. The 8-inch base layer maintains the strength and effectiveness of the layers. The layers work together to bring you the relaxation you crave and the ultimate sleeping experience, while lessening motion transfer.

Benefits of Gel Memory Foam
A gel memory foam mattress can support each part of the body evenly and individually. Gel Memory foam slowly and automatically adjusts to your body weight and temperature. In addition to the slow, conforming response, gel memory foam offers complete, luxurious and stress-free support. Additionally, when you do move in bed, memory foam gently 'fills in' and reshapes itself to your new sleeping posture, cradling every contour of your body.

The Latest Gel Memory Foam Technology
Gel Memory Foam is a unique material that infuses gel particles into visco-elastic memory foam, creating a plusher and cooler sleeping material. Gel memory foam is more porous or open than conventional foam meaning the cells are interconnected unlike closed cell foam; thereby is more breathable and comfortable than higher density visco-elastic foam. The open-celled physical structure of our foams is self-ventilating. Air travels throughout the material and dissipates body heat regulating your body temperature. Gel Memory foam is naturally hypoallergenic and resistant to allergens, mold, bacteria and dust mites.

Why Buy a Cool Gel Memory Foam Mattress?
Cool Gel mattresses with gel infused memory foam disperse body heat and create a cooler sleeping surface while retaining the pressure-relieving properties of traditional memory foam. Tossing and turning are dramatically diminished and disrupted sleep patterns are greatly eliminated so you can sleep longer without moving and enjoy the benefits of a deeper, more restful sleep pattern.

Adjustable Base Friendly
Classic Brands 14-Inch Cool Gel Memory Foam Mattress is adjustable base friendly, which means it is the best choice to be paired up with an adjustable base instead of a traditional bed frame for added lifestyle and health benefits. The mattress is flexible and durable enough that it will maintain the support and integrity even after bending with the adjustable base.

CertiPUR-US Certified
Classic Brands gel memory foam mattresses are CertiPUR-US Certified. The CertiPUR-US program is a voluntary testing, analysis and certification program for flexible polyurethane foam used as a cushioning material in home furnishings such as adult mattresses, crib mattresses, upholstered furniture and some accessory comfort products. Certified flexible polyurethane foams have been independently laboratory tested.

Get it Right the First Time
It is also a good idea to know the size and the height of your mattress ahead of time to make sure you are ordering the correct size. Keep in mind that you should combine the height of your bed frame, foundation, or adjustable bed base with the height of your mattress to get a gauge of the how tall your sleep system will be.

Twin Size - 39"" W x 75"" L x 14"" H
Twin XL Size - 39"" W x 80"" L x 14"" H
Full Size - 54"" W x 75"" L x 14"" H
Queen Size 60"" W x 80"" L x 14"" H
King Size 76"" W x 80"" L x 14"" H
California King Size 72"" W x 84"" L x 14"" H

Classic Brands Smart Packaging
Classic Brands also uses Smart Packaging. Smart packaging reduces the carbon footprint in the manufacturers shipping process. Our advanced packaging technology means we can roll-pack our mattresses and ship them at one-third of the normal size. Because of this process, we can ship more mattresses per delivery and reduce the amount of carbon emissions. A mattress that is roll-packed still retains its initial quality, as each will quickly recover and return to its original shape after being removed from its packaging.

Quality Assurance
The Classic Brands 14-Inch Cool Gel Memory Foam Mattress is backed with a 10-year worry-free warranty.

Look for more innovative specialty sleep products from Classic Brands.

3. Zinus Memory Foam 12 Inch Green Tea Mattress, King

Feature

NOTE: Please allow up to 72 hours for the mattress to fully expand and for any potential odor to dissipate Though our mattresses typically expand in 48 to 72 hours, they may take up to a week in some cases Other factors, like cold weather, can also affect decompression times
Conforming Green Tea Memory Foam comfort and pressure relieving support for a better night's sleep. 3 inches Memory Foam, 2 inches Comfort Foam, 3.5 inches Airflow High-density Foam, 3.5 inches Airflow High-density Base Support Foam
Foam is CertiPUR - US Certified for durability, performance, and content. Product dimensions: 80 x 76 x 12 inches
Infused with Green Tea extract and Castor Natural Seed Oil to naturally retard odor & bacteria. Core Composition: 1in Memory Foam + 5in High-Density Base Support Foam
Smartly Shipped - Our patented technology allows our mattresses to be efficiently compressed, rolled and shipped in a box conveniently to your door

Description

Enjoy the comfort and support of Green Tea Memory Foam. The Zinus Memory Foam 12 Inch Green Tea Mattress provides conforming comfort with a memory foam layer and Pressure Relieving Comfort Foam layer that conforms to the natural shape of your body. The Airflow High-density Foam layers provide long lasting durability and stability.

Please open your mattress package within 72 hours of receipt and allow 48 hours for your new mattress to return to its original, plush shape. Worry free 10 year limited warranty. Another comfort innovation from Zinus. Pioneering comfort. We recommend that you place your mattress in a well-ventilated area after removing all packaging components. Please allow up to 72 hours for the odor to completely dissipate. Please allow 24 hours at room temperature for the surface to return to its normal feel

4. Zinus 12 Inch Gel-Infused Green Tea Memory Foam Mattress, King

Feature

Cool, conforming, and comfortable, gel-infused Green tea memory foam for a better night's sleep
2 inches gel-infused memory foam, 3 inches comfort foam, 3.5 inches air-flow high-density foam, 3.5 inches air-flow high-density base support foam
Foam is CertiPUR - US Certified for durability, performance, and Content. Core composition: 1in memory foam + 5in high-density base support foam
Zinus infuses its memory foam products with natural Green tea extract and all natural active Charcoal to help absorb moisture, eliminate odors, and keep your mattress fresh.
Smartly shipped - Our patented technology allows Our mattresses to be efficiently compressed, rolled and shipped in a box conveniently to your door

Description

Enjoy the cool comfort and support of Gel-infused Green Tea Memory Foam for a better nights sleep. The Gel-infused Memory Foam and Pressure Relieving Comfort Foam provide support by conforming to the natural shape of your body. The High-density Support Foam layer provides long lasting durability and stability. This mattress is ideal for all types of sleepers and provides plush support. NOTE: Please open your mattress package within 72 hours of receipt and allow 48 hours for your new mattress to return to its original, plush shape. Worry free 10 year limited warranty. Another comfort innovation from Zinus.

5. Best Price Mattress 10-Inch Memory Foam Mattress, King

Feature

Amazing comfort from body-conforming memory foam;A non-skid fabric in the center helps to keep mattress in place
Feel like you are floating on a cloud; no pressure points; deeper sleep
Mattress layers: 3" memory foam, 2" super soft foam with pressure relief system and 5" high density foam
Pressure relief system virtually eliminates all pressure points to ensure a comfortable night sleep
Certipur-Us certified/10 year warranty

Description

Memory foam provides a great sleeping surface. In normal temperatures it is somewhat firm, but when you lay down, it starts reacting to the temperature of your body and begins to mold itself to your shape. Then, weight is evenly distributed along the surface, relieving pressure points and helping you to sleep more without tossing and turning. Amazing comfort from body-conforming. Feels like you are floating on a cloud. Best Price Mattress mattress products contain a fire retardant sock layer that covers the foam before the outer cover is placed. The fire retardant sock is made from silica-based glass fibers blended with acrylic outer wrap

6. Zinus Ultima Comfort Memory Foam 12 Inch Mattress,King

Feature

Conforming memory foam comfort and support for a better night's sleep
Mattress layers include: 3 inches Memory Foam, 3 inches Pressure Relieving Comfort Foam, and 6 inches High-density Base Support Foam
Only the Highest Quality of Foam-Foam is CertiPUR - US Certified for durability, performance, and content
The latest evolution of memory foam, BioFoam, replaces some of the traditional petroleum with natural plant oil to help keep your mattress fresh
Smartly Shipped - Our patented technology allows our mattresses to be efficiently compressed, rolled and shipped in a box conveniently to your door

Description

Rest easy with the memory foam support of the Sleep Master Memory Foam mattress from Zinus, pioneers in comfort innovation. The 12 Inch Memory Foam Mattress provides conforming comfort with a memory foam layer that molds to the natural shape of your body. The full support high density foam base layer provides long lasting durability and stability. Please open your mattress package within 72 hours of receipt and allow 48 hours for your new mattress to return to its original, plush shape. Worry free 10 year limited warranty. Another comfort innovation from Zinus. Pioneering comfort.

7. LINENSPA 8 Inch Memory Foam and Innerspring Hybrid Mattress - King

Feature

8-inch hybrid mattress combines memory foam with the traditional support of an innerspring mattress for a medium-firm feel perfect for kids rooms, guest beds, or an affordable low-profile option
A cozy layer of memory foam is quilted in the soft, knit fabric mattress cover
A 1.5 inch layer of comfort foam beneath the quilted top layer helps to minimize pressure points
Conveniently compressed and shipped in a box for fast shipping and hassle-free setup
King mattress measures 76" x 80" x 8" and comes with a 10-year U.S. manufacturer's warranty

Description

Add the pressure point relief of memory foam to the reliable support of a traditional spring mattress, and you have the revolutionary comfort of the hybrid mattress. A layer of memory foam is quilted in the soft, knit cover and placed over a 1.5 inch layer of comfort foam to create an incredibly comfortable sleep surface. The foam conforms to the unique curves of your body to minimize pressure points. Beneath the foam top, 6-inch steel coils offer the support and durability of a spring mattress. This design distributes body weight to contour and support as you sleep. The spring layer provides the traditional bounce many like in an innerspring mattress, and improves the breathability of the mattress. This mattress is rolled and shipped in a box for convenient delivery and setup. Simply take the box to the proper room, carefully remove packaging, and watch as the mattress expands to its true size. This mattress comes with a 10-year U.S. warranty that guards against manufacturer defect.

8. Zinus Memory Foam 12 Inch / Premium / Cloud-like Mattress, King

Feature

2 Inch microfiber and foam quilted jacquard cover, 2 inch memory foam, 3 inch comfort foam & 5 inch high-density base support foam
Memory foam is infused with green tea, charcoal and natural plant oil for minimal use of petrol based chemical and works to eliminate orders
Our patented compression technology allows our mattresses to be efficiently compressed, rolled and shipped in a box conveniently to your door
All foam is CertiPUR-US Certified for durability, performance and content with 10-year limited warranty
We recommend you open your mattress package upon receipt and allow at least 72 hours at room temperature for your new mattress to return to its original, plush shape.

Description

Sleep Master by Zinus designed the Cloud Memory Foam Mattress collection to include a plush, quilted cover and a unique combination of foam layers that provide a cloud-like, luxury feel. The innovative foam layering system shapes itself to your body to give you a customized, comforting, sleep surface. Sleep Master has added the Viscolatex Responsive foam for resiliency and the high-density foam for full-body support so you can sleep well and wake up refreshed. Another comfort innovation from Zinus. Pioneering comfort. NOTE:. Our mattresses typically take 48 to 72 hours to decompress but may take longer in certain cases. Other factors, such as cold weather, can affect decompression times.

9. Tuft & Needle King Mattress, Bed in a Box, T&N Adaptive Foam, Sleeps Cooler with More Pressure Relief & Support Than Memory Foam, Certi-PUR & Oeko-Tex 100 Certified , Made in USA

Feature

ADAPTIVE FOAM: Constructed with freshly poured T&N Adaptive foam, this king size mattress provides a bouncy yet supportive feel perfect for all sleeping positions. Our foam allows us to compress our mattress to fit into a small box and ships quickly.
HIGH QUALITY: Our high-grade foam is more advanced than outdated materials such as latex and memory foam which cause you to "sink in and feel stuck" and "sleep hot." The T&N Adaptive foam sleeps cool, is just the right mix of "not too soft, and not too hard", and offers great pressure relief and "localized bounce" so you won't disturb your sleeping partner.
NO RISK: Mattress has a full refund guarantee with a 100-Night Sleep Trial plus an honest, 10-year limited warranty you can actually use (no gimmicks). Over 95% of our customers keep their mattress and refer it to others.
NOTE: Please allow up to 72 hours for the mattress to fully expand and for any potential odor to dissipate.

Description

Tuft and Needle is a new mattress company that designs a universally comfortable foam mattress that is No.1 top-rated on Amazon. Exclusively available online and made in the USA, the mattress ships right to your door. No gimmicks, no sales tactics, 100 night trial and easy returns.

10. LUCID 10 Inch Gel Memory Foam Mattress - Medium Feel - CertiPUR-US Certified - 10-Year U.S. Warranty - King

Feature

Dual-layer mattress combines 2.5" gel-infused, ventilated memory foam surface + 7.5" high density foam base for excellent support for a medium feel
Gel infused memory foam regulates temperature while conforming to the body to ease pressure points
Temperature-regulating, moisture-controlling TENCEL blend fabric cover creates a comfortable air layer
Memory Foam is CertiPUR-US certified for safety and performance
Compressed, rolled and shipped in a box for simple setup; King size: 80 x 76 x 10

Description

The Feel
We combined a 2.5-inch layer of ventilated gel memory foam and a 7.5-inch layer of high density support foam for a pressure-relieving and supportive mattress with a medium feel.

Gel Memory Foam
Infused with heat-capturing gel material, the top memory foam layer is designed to prevent heat build-up. Microscopic gel beads capture heat and move it away from the body to help regulate temperature as you sleep. This surface layer of memory foam has a ventilated design that improves airflow. The open cell structure of LUCID memory foam makes for a longer lasting, more resilient foam that will not leave long-lasting body impressions.

Soft, Breathable Cover
Made of a cozy TENCEL blend fabric (10 percent TENCEL lyocell, 90 percent polyester), the soft cover creates a breathable air layer at the top of the mattress.

Certified Safe
The foam used in this mattress is CertiPUR-US certified, which means the foam has been independently tested for safety of materials used, physical performance and environmental stewardship. Careful construction guarantees no prohibited phthalates, no ozone depleters, no CFCs, no mercury, no formaldehyde, no PBDEs, and low emission (VOCs) for indoor air quality. This mattress does not contain synthetic or natural latex of any kind.

10-Year Warranty
We offer a 10-Year U.S. Warranty that protects the mattress and cover against manufacturer defect.

Conveniently Shipped for Easy Set Up
All of our products are shipped vacuum packed, so your mattress is easy to transport and set up. After your mattress arrives, simply take the package into the right room, remove it from the box and protective wrap, and then watch as it expands.

Need a Frame?
For warranty purposes Lucid recommends this frame and box spring in one:

Conclusion

By our suggestions above, we hope that you can found the best foam mattress king size for you. Please don't forget to share your experience by comment in this post. Thank you!

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