The 8 Best memory foam king mattresses of 2025

Are you trying to find memory foam king mattresses among various brands on the market but aren’t sure where to begin? To assist you in finding the right one, we’ve put together a list of the 7 best to help you pick the perfect one!

We investigated and evaluated a number of the top-selling memory foam king mattresses on the market in order to create our list of the best. Making a decision among the many options available is never simple. There are an infinite number of models available, each with a distinct price. And as you’ll find out, the best options aren’t usually the ones you imagine! This comparison is rich and relevant because of the numerous factors that were employed. You will find products featured in this ranking not only based on their pricing but also on their features and other customers reviews. To write this review, we completed 16 hours of research and did 28 memory foam king mattresses tests. You won’t need to pick products at random any more. If you’re unsure of what to look for, browse our list and consult the buying guide!

An overview of our top picks

SaleNo. 1

ZINUS 12 Inch Green Tea Memory Foam Mattress [New...

No. 2

FDW 10 inch King Mattress Size/Gel Memory Foam...

SaleNo. 3

Novilla King Mattress, 12 Inch King Size Memory...

The best memory foam king mattresses you can buy today

SaleNo. 1

ZINUS 12 Inch Green Tea Memory Foam Mattress [New Version], King, Fiberglass free, Medium Firm Feel, Zoned Pressure Relief, Certified Safe Foams & Fabric, Mattress in A Box

FOR GREAT SLEEP AND A CLEAN PLANET – Featuring our patented zoned pressure relief technology designed to help reduce aches and pains through the night, this new version ships in a smaller box for a reduced carbon footprint
COMFORTABLE SUPPORT - Pressure-relieving memory foam conforms to the shape of your body while enhancing circulation and decreasing stress on your joints
ALL NIGHT FRESHNESS - The all-natural green tea and purified charcoal infusions work together to help keep your mattress fresh for many nights to come
CERTIFIED SAFE MATERIALS – Crafted from high-quality CertiPUR-US certified foam and wrapped with an OEKO-TEX certified mattress cover all produced without the use of harmful chemicals for safer, healthier sleep
WORRY FREE WARRANTY - Worry-free 10-year limited warranty included; twin mattress supports a maximum weight of 250 lbs, while all other sizes can support up to 500 lbs; please allow 24–72 hours for your mattress to expand to its original shape

No. 2

FDW 10 inch King Mattress Size/Gel Memory Foam Mattress/Medium Firm Mattresses for Cool Sleep Relieving Pressure Relief CertiPUR-US Certified Mattress in a Box

❥【Medium Firm】-Gel foam, with its unique microporous structure and excellent elasticity, brings unprecedented touch. His medium hardness can make you feel not too soft and not too hard, suitable for most people's sleep.
❥【 Intelligent adjustment, suitable for all seasons】-This mattress will change according to your weight, and absorb your body temperature, whether it is cool on a hot summer day, or a warm hug on a cold winter night, it can create the most suitable environment for you to relax.
❥【 Health protection, breathing freedom 】- Using high-quality raw materials, gel foam ensures peace of mind and health every time. Its unique breathable properties allow air to circulate freely, effectively prevent bacteria from breeding, and build a solid defense line for the health of you and your family.
❥【 Durable, High quality choice 】- After rigorous quality testing and process grinding, the gel foam shows extraordinary durability. It can maintain its shape and elasticity for a long time, even through the baptism of age, it is still the same, is your trusted companion.
❥【 Mattress in box, suitable for all bed frames】-Our mattresses are compressed in a box, perfect for delivery without any inconvenience, suitable for a variety of large bed frames, mattresses are recommended to be deflated and reshaped within 72 hours.

SaleNo. 3

Novilla King Mattress, 12 Inch King Size Memory Foam Mattress with Comfort Foam for Pressure Relief & Cool Fresh Sleep,Removable Washable Mattress Cover,Memory Foam Mattress King

CertiPUR-US CERTIFIED ENSURES HEALTHY SLEEP - The Novilla king mattress is designed with a 3-layer foam system for better support and comfort. The mattress layers consist of 3"comfort foam ， 3" egg crate foam and 6" high-density support Base Foam. The comfort foam adsorbs moisture and helps keep the sleep surface cool, providing you with a fresh and clean sleeping environment.
COOL & COMFORTABLE SLEEP - The king memory foam mattress cover is made of high-quality knitted fabrics, providing superior comfort and durability. Knitted fabrics excel in great breathability and are soft-to-touch with enhanced air circulation for a cooler night's sleep. Sleepers who typically overheat while sleeping will benefit most from this mattress.
PRESSURE RELIEF & EDGE SUPPORT - The memory foam mattress king offers a medium firmness sleep experience. Underneath the mattress cover lies a layer of comfort foam that conforms closely to the body's shape and relieves pain at pressure points. The supportive base generates enough pushback to provide excellent support to the body. The edge support on both sides of the mattress is reinforced to prevent slipping when sitting or sleeping near the edge.
REMOVABLE WASHABLE MATTRESS COVER - Equipped with a high-quality zipper at the bottom of the mattress for easy removal of the cover. You can simply toss it into the washing machine for a quick and easy clean, protecting your mattress from stains and keeping the sleeping surface hygienic.
WORRY-FREE PURCHASE - The king mattresses come with a no-risk 100-night trial and a 10-year limited warranty. The mattress king is compressed, rolled, and shipped in a box, making it convenient for you to set up by yourself. It's compatible with most bed bases and frames. For a better sleeping experience, please allow at least 72 hours for the mattress to fully expand. Please feel free to contact Novilla Customer Support Team if you experience any issues or are not satisfied with the product.

SaleNo. 4

NEO SLEEP 12 Inch King Medium Firm Cooling Gel Memory Foam Mattress for Cool Sleep Pressure Relieving CertiPUR-US Certified Mattress in a Box Fiberglass Free (King, 12 in)

DREAMY AND BUDGET-FRIENDLY - Get the most out of your money with a mattress for exceptional comfort. Perfect for anyone looking to save without sacrificing quality. Sleep well and save more.
STAY COOL ALL NIGHT - Our cooling gel memory foam keeps you at the perfect temperature. No more night sweats or discomfort. Enjoy a refreshing and uninterrupted night's sleep.
BALANCED SUPPORT - Find the sweet spot with our medium firmness mattress. It offers just the right blend of softness and support. Wake up feeling rejuvenated and ready to take on the day.
QUALITY YOU CAN TRUST – Our mattress uses CertiPUR-US certified foam, meeting strict standards for content and emissions to provide you with a safe and comfortable sleep experience.
EASY SETUP, INSTANT COMFORT - In a convenient box for simple setup. Unbox, unroll, and watch it expand. Ready to provide you with unbeatable comfort in minutes.

No. 5

ZINUS 12 Inch Green Tea Cooling Memory Foam Mattress [New Version], King, Fiberglass Free, Medium Firmness, Cooling Gel Foam, Certified Safe Foams & Fabric, Mattress in A Box

COOLER SLEEP AND A CLEANER PLANET – Topped with soothing gel memory foam, this mattress is designed to help keep you cool and comfortable throughout the night, and ships in a new smaller box to support a reduced carbon footprint
REJUVENATING SUPPORT – Pressure-relieving memory foam conforms to the shape of your body to enhance circulation and decrease stress on your joints, and is infused with cooling gel for ultimate temperature regulation
ALL NIGHT FRESHNESS - The all-natural green tea and purified charcoal infusions work together to help keep your mattress fresh for many nights to come
CERTIFIED SAFE MATERIALS – Crafted from high-quality CertiPUR-US certified foam and wrapped with an OEKO-TEX certified mattress cover all produced without the use of harmful chemicals for safer, healthier sleep
WORRY-FREE WARRANTY – A 10-year limited warranty is included with the mattress; please allow 24–72 hours for your mattress to expand to its original shape

No. 6

Gojef King Size Mattress, 12 Inch King Mattress, Hybrid Mattress in a Box with Independent Springs, Soft and Comfortable, Pressure Relief, CertiPUR-US Certified, Medium

【CertiPUR US Certified】Elevate your sleep sanctuary with our Gojef hybrid memory foam mattress – certified by CertiPUR US and Oeko-Tex Standard 100 for unrivaled safety and durability. The mattress is made of premium and safe material with no harmful substances, skin-friendly and safe for all. Unbox a healthy and blissful sleep experience!
【Reinforced Spring for Better Support】Gojef hybrid mattress king is built with high-density memory foam and hundreds of independent pocket springs. A customized support for every curve of your body, ensuring that your weight is evenly distributed from head to toe. This ergonomic design maintains a good balance of your spine and ultimate pressure relief, give a better protection to you and your family.
【Quiet and Peaceful Sleep】Soft and breathable knitted fabric on the top, multi-layer memory foam, and hundreds of independent pocket springs built in individually. Creating comfortable support and effectively absorbing vibrations and noise by partner's movement. No worry of disturbing each other when turning over. Immerse yourself in a night of serenity and peaceful slumber.
【Bed in a Box】The king size mattress is compressed and packed in a box, allowing for easy transportation to your room. Simply unbox and unroll the mattress with no intricate installation. Please allow 48-72 hours for decompression and any potential odor to dissipate after opening the mattress. Whether you have a box spring, slatted frame, platform bed, or metal grid, this mattress is suitable and can be set up effortlessly.
【Satisfaction Assured】Say goodbye to sleep anxieties with the Gojef mattress. Our foam meets CertiPUR-US standards, and comes with 100-night trial and 10-year support for safety and durability. We stand firmly behind the quality of our mattress to ensure your satisfaction. Any issues? Contact us! Our support team is always here to help.

No. 7

EGOHOME 10 Inch King Size Mattress, Cooling Gel Memory Foam Mattress,Green Tea Mattress, Bed Mattress in a Box, Pressure Relieving, CertiPUR-US Certified, Fiberglass Free Mattress

Medium Feel: This mattress combines multiple layers of support and comfort to provide you with responsive comfort and a medium feel, which is great for back and stomach sleepers. It is ideal for kids' rooms, guest beds, bunk beds, trundle beds, or as an RV mattress.
Cooling Gel-Infused Green Tea Memory Foam Mattress: The mattress provides pressure-relieving and temperature-regulated sleep. The all-foam system includes ultra-cooling gel and green tea infused memory foam, along with durable, high-density base support foam. The green tea infusion helps to keep the green tea memory foam mattress fresh and clean, while the cooling gel helps regulate temperature and prevent overheating.
CertiPUR-US & Oeko-Tex Standard 100 Certified:Our mattresses are certified by both CertiPUR-US and Oeko-Tex Standard 100, which ensures that they are free from harmful substances. The memory foam and fabrics have been independently evaluated and found to comply with all mandatory and voluntary safety standards for mattresses. These certifications provide reassurance for children's safety.
Mattress in a Box Delivery：Our technology allows for this mattress to be efficiently compressed into one box that is easily shipped and maneuvered into the bedroom. Simply unbox, unroll, and the mattress does the rest by expanding to its original shape within 12 hours.
Worry-Free 10 Year Limited Warranty Included: We believe that you will love this sleep item and are dedicated to giving you the best night of sleep through our superior products. If your mattress is defective or damaged during delivery, our U.S.-based customer support team will happily work with you to address any concerns to make it right.Please note that THERE IS NO TRIAL PERIOD, OPENED MATTRESSES CANNOT BE RETURNED.

SaleNo. 8

Novilla King Size Mattress, 12 Inch Gel Memory Foam King Mattress for Cool Night & Pressure Relief, Medium Plush Feel with Motion Isolating, Bliss

General Note: Please allow 24 - 72 hours for your Mattress to regain its full shape. Any memory foam will expand faster in a warmer room. In cold temperature, at delivery, your mattress may take a bit longer to return to full sized from its compressed state.The expansion time of the mattress will vary as per the surrounding.General Note: Please allow 24 - 72 hours for your Mattress to regain its full shape. Any memory foam will expand faster in a warmer room. In cold temperature, at delivery, your mattress may take a bit longer to return to full sized from its compressed state.The expansion time of the mattress will vary as per the surrounding.
COOL and HIGHLY BREATHABLE- Novilla king size mattress constructed with a 4-layer all-foam system. The foam mattress on top is a gel-infused memory foam that keeps you cool. The egg crate designed foam layer increases airflow through all areas of this king size memory foam mattress. The mattress cover can also increase breathability by 30%. Ensures you stay asleep longer with this bed mattress.
RELIEVES PAINS and DAMPENS PARTNER’S MOVEMENTS- Novilla 12'' gel memory foam medium firm king mattress includes 4 different foam layers. Gel memory foam is combined with comfort foam to distribute pressure and mold to your body. And the two layers high density foam that improve durability, which to give your body support for proper spinal alignment. Also to resist sagging and prevent roll-off. Whether you sleep alone or next to a partner, there is no disruption.
A SAFE and COMFORTABLE SLEEP ENVIRONMENT- Mattress is made of CertiPUR-US Certified foam, without any harmful off-gassing and substances like formaldehyde, mercury, and other heavy metals. The bed mattress cover use skin-friendly rayon fabric, heavenly soft to touch. Novilla king size memory foam mattress gives you a healthier and cloud-like experience.
KING MATTRESS IN A BOX and FITS ALL BED FRAMES- Such fun to receive a mattress that’s rolled and compressed in a box . Follow the instructions and see how the magic happens. It is easy to set up and fits all kinds of bed frames, even on the floor. Please note that the new mattress is compressed and rolled for shipping, so it is recommended to wait 72 hours for the mattress to air out and fully reshape it for better performance.

No. 9

ZINUS 12 Inch Green Tea Essential Memory Foam Mattress [New Version], King, Fiberglass Free, Medium Feel, Breathable Airflow Memory Foam, Certified Safe Foams & Fabric, Mattress in A Box

FRESHER SLEEP AND A CLEANER PLANET – Topped with breathable green tea Airflow memory foam, this mattress is designed to help you feel fresh and comfortable throughout the night, and ships in a new smaller box to support a reduced carbon footprint
ALL NIGHT FRESHNESS - The all-natural green tea infusion in every layer of this mattress keeps things fresh for many nights to come
BREATHABLE PRESSURE RELIEF – Our extremely breathable Airflow memory foam maximizes airflow while relieving pressure and conforming to the shape of your body, enhancing circulation and decreasing stress on your joints.
CERTIFIED SAFE MATERIALS – Crafted from high-quality CertiPUR-US certified foam and wrapped with an OEKO-TEX certified mattress cover all produced without the use of harmful chemicals for safer, healthier sleep
WORRY-FREE WARRANTY – A 10-year limited warranty is included with the mattress; please allow 24–72 hours for your mattress to expand to its original shape

No. 10

Twolike King Mattress 12 inch No Fiberglass Gel Memory Foam King Size Mattress in a Box of Foams and Fabric for Cooling Pressure Relief Sleep, 80" X 76" X 12", Medium, Firm

Mattress Rebound Note - Allow 24 to 72 hours for your memory foam to fully expand. Warm rooms speed up this process, while colder ones may slow it. Follow the instructions to witness the magic of a cake like mattress expanding
Cool and Comfortable Sleep - Premium ice silk fabric regulates temperature for a cool, comfortable sleep. It minimizes sweat in hot or humid conditions, ensuring a dry, cozy surface for a restful night
Healthy Mattress - Our mattresses are made of qualified foam and fabric to ensure your safe and comfortable use. If there is a slight odor when you first open the mattress, don't panic. It is harmless and will dissipate in a few days
Pain Relief Box Mattress - This 12 inch King size mattress features vacuum sealed packaging technology and is compatible with various bed frames. It is sturdy enough to support you evenly, but soft enough to gently treat your sensitive areas
Peace of Mind Purchase - As the brand owner and manufacturer, Our bed mattresses go with 10 years protection. Over 99% of customers are willing to keep their King mattresses and recommend them to others

No. 11

Avenco King Size Mattress, 12 Inch King Memory Foam Mattress in a Box for Comfort Sleep & Pain Relief, CertiPUR-US Certified King Mattresses Medium Firm

FRESH SLEEP NIGHT: Avenco 12 inch memory foam king size mattress features a breathable and light fabric to enhance airflow and minimize heat retention. 2-layer comfort foams effectively eliminate odors and pulls moisture to keep the mattress fresh. Our king mattresses keep you at the optimal body temperature for refresh sleep.
PRESSURE RELIEF and STABLE SUPPORT: Combined 2" comfort foam and 10" high density foam base, our full size mattress contours to your body for perssure relief and enhances additional support to avoid sinking and reduce the transfer of your partner's motion. The edge support on both sides of the mattress is reinforced to prevent slipping when sitting on the bed edge. Cozy full foam mattresses accommodate with most back sleepers, stomach sleepers and side sleepers.
BIG BANG FOR THE BUCK: Avenco king size mattress offers the ultimate in sleep comfort at 10% below market price, which will be the best value option for your guestroom, kids' bedroom and college dorm. The zipper-closured mattress cover can be washed by hand or machine, which is easy to keep the foam mattress clean.
BED IN A BOX: Door-to-door delivery with vacuum-sealed packaging. Please allow the king memory foam mattress to rest in room temperature for 24-72 hours to fully expand and recover. ( Higher temperatures will expand faster while lower temperatures will be slower.)
THOUGHTFUL SERVICE: Up to support 450lbs, Avenco king size mattress in a box is certified by CertiPUR-US and is compatible with most bed frames like box springs, platforms, slatted bases, floors, etc. 100-NIGHTS TRIAL and 10-YEAR WARRANTY will be available, pls feel free to contact us if you have any questions.

No. 12

Classic Brands Cool Gel Chill Memory Foam 14-Inch Mattress with 2 Pillows,CertiPUR-US Certified, Mattress in a Box, King, White

Cool Gel Infused Memory Foam: Our Cool Gel mattress is topped with a whopping 3.5-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.
Pressure Relief: The Cool Gel Memory Foam mattresses offer premium pressure-relieving memory foam and high-density aerated cool gel memory foam provide essential support and comfort for a deeper night's sleep.
Ventilated Foam: Our Cool Gel Memory Foam Mattress features an open cell design allows for a greater circulation, while the cool gel regulates body temperature.
Free Pillows Included: 2-Bonus Memory Foam Pillows are included with the Queen Size Mattress, King Size Mattress, Full Size Mattress, and California King Mattress. 1-Bonus Memory Foam Pillow is included with the Twin Mattress and Twin XL Mattress.
Fiberglass Free: The Cool Gel Memory Foam Mattresses is fiberglass free, and meets the CertiPUR-US program standards for the mattress performance, emissions, and durability.
Mattress Dimensions: 76" W x 80" L x 14" H. Our King Mattress is beautifully tailored and detailed with a stretch knit fabric cover with waterfall edge and matching knit side panels.
Simple Set Up: Simply take your mattress out of the box and enjoy watching it decompress. Jumping, walking, and sleeping on your mattress can speed up the process. No assembly required.

SaleNo. 13

3 Inch Gel Memory Foam Mattress Topper King Size, High Density Memory Foam Mattress Pad Cover with 8-21" Deep Pocket for Pressure Relief, Pillow Top with Removable Viscose Made from Bamboo Cover

High-density Memory Foam: 3 inch memory foam mattress topper is made of high-density memory foam and gel infused beads, which is more breathable and maintains a cooler temperature than ordinary memory foam, improving the sleep experience. High-density memory foam provides adaptive comfort and support to help relieve pressure points and increase softness
Removable & Washable Cover: Our cover is made of viscose made from bamboo, which is skin-friendly, breathable. Zipper closure for easy disassembly and cleaning
Upgraded Deep Pocket and Non-slip Design: The upgraded 360° fabric sides stretch easily to fit the mattress up to 21 "thick. It can easily be placed on most mattresses. And with a non-slip surface backing, it won't slide no matter how you twist on the bed
Warm Tips: The product was delivered in vacuum packaging. Before the first use, please lay the memory foam in a well ventilated place for 24-48 hours until its smell dissipates and it fully expands
Customer Satisfaction is Our Priority: We provide a 365 night satisfaction guarantee. If you are not satisfied with the product, please feel free to contact us to obtain a satisfactory solution

No. 14

SIMARTH King Size Mattress 12 Inch - Upgrade Strengthen, Memory Foam Hybrid Mattress with Motion Isolation and Pressure Relief, Strong Edge Support, Pocket Spring King Size Mattress in a Box, Medium

【Comfortable & Breathable】King size mattresses curated with high-end fabrics for a soft, silky touch. Exclusive knit fabric technology is both breathable and sweat-wicking and keeps you warm for the perfect sleep experience
【Unparalleled Sleep Enjoyment】Mattress king size has a patented supportive technology that ensures every part of your body fits perfectly for unprecedented relaxation, effectively relieving fatigue and allowing you to have a better night's sleep
【Perfect Scientific Combination】King bed mattress is made of individually pocketed springs and multiple layers of premium memory foam, expertly layered in our high-quality memory foam and ultra-high-density base foam for ultimate support
【King Mattress in a Box】Unlike the traditional 2 coils, we offer the Hybrid Mattress with the addition of 3 coils, which enhances the mattress's edge support and superior barrier against the effects of your partner's movement. Achieve a quiet and comfortable deep sleep
【100% Service Support】 We are so confident that you will love this mattress that we offer a 100-night risk-free trial sleep and a 10-year usage guarantee. For a perfect sleeping experience, We recommend that you allow 24-72 hours after disassembly for the mattress to return to its optimal condition. If you have any other questions you can contact us through Amazon

SaleNo. 15

Mattress Topper King, 3 Inch Gel Memory Foam Bed Topper for King Size Bed, CertiPUR-US Certified, Blue

【Gel Memory Foam Mattress Topper】Crafted with gel-infused memory foam, this king mattress topper offers a cool and comfortable sleeping surface. Additionally, its ventilated design, featuring air holes, assists in absorbing moisture and sweat from your body, preventing them from penetrating the mattress.
【Pressure Relief】If you find yourself tossing and turning due to the firmness of your mattress, the addition of a topper could significantly enhance your sleep quality. Designed with slow-rebound and high-density memory foam, this king-sized mattress topper adapts to your body shape, provides comprehensive body support, and alleviates pressure in key areas. Rest assured, our memory foam is CertiPUR-US Certified, ensuring durability, performance, and content quality.
【Available in 2 Different Thicknesses】The inclusion of this mattress topper will modify the firmness of your mattress, catering to a wide range of sleep positions while conforming to your body shape for improved support. Our mattress topper comes in 2 different thickness options. Opt for the 2-inch if you desire a slight addition of cushioning and softening for your new mattress. Alternatively, if you seek more substantial support, the 3-inch options are available for your preference.
【Easy Set up】Compressed into a single box for convenient shipping and easy maneuvering into your bedroom, this king-sized mattress topper simplifies the delivery process. Upon receiving your topper, simply unbox, unroll, and allow it to sit in a well-ventilated space for 48-72 hours to achieve full expansion. Note that in lower temperatures, additional time may be required for complete expansion.
【Practical Mattress Topper】Enhance your night's sleep by placing this mattress topper on your bed for an even comfier experience. Not only does it contribute to your comfort, but it also helps maintain the condition of your mattress. Easily removable, you can take it out of bed and air the entire setup.

No. 16

3 Inch Ultra-Fluffy Memory Foam Mattress Topper King for Back Pain, Extra Soft Pillow Top King Mattress Topper with 4X Support, Mattress Pad with Breathable Air Mesh Sides, 6-21'' Deep Pocket

MEMORY FOAM COMBINING SOFTNESS AND SUPPORT! Is your firm gel memory foam mattress topper too hard, and your down alternative topper too soft, causing you to toss and turn with body aches? Filled with a blend of 40% memory foam and 60% fiber, Milcabe bed topper is designed for coordinated support and softness. Experience the plush comfort akin to sinking into a fluffy cloud, yet maintaining support that contours perfectly to your body, effectively relieving pressure points!
FLUFFY AND COZY THAT WON'T GO AWAY! Made with premium fabric and refined diamond-quilted techniques, this mattress pad ensures even distribution of filling and prevents clumping over time. With sufficient memory foam filling, Milcabe memory foam mattress topper will not flatten or lose its softness over time, unlike other king mattress toppers on the market. Our mattress topper king will consistently offer you the utmost comfortable softness!
ENJOY A BREATHABLE AND SWEAT-FREE NIGHT'S SLEEP. Featuring an innovative 3D air mesh design, Milcabe pillow top mattress topper king allows air to flow in and out from all directions, preventing heat buildup and maximizing temperature regulation to keep you cool and dry throughout the night. Prioritizing your safety, our foam mattress topper is Oeko-Tex Standard 100 certified, ensuring it is free from harmful chemicals and guaranteeing a healthy sleep!
DEEP POCKETS FOR PERFECT FIT! Our mattress topper are available in 9 sizes, whether you have a king bed or a cal king bed. Coming in the fitted sheet style with 18" elastic deep pocket, our king size mattress topper can accommodate your mattresses from 6" to 21" in height and provide an extra protection for them. The deep elastic pockets provides a secure grip, allowing you to freely change positions without causing the mattress topper to slide or shift.
HASSLE-FREE REPLACEMENT - NO NEED TO RETURN! Our high-quality mattress topper saves you from the expense of replacing an expensive mattress, helping alleviate body fatigue. Our commitment extends to service quality, with each purchase including a 10-year after-sales guarantee. If you're not satisfied, there's no need to struggle with packing the thick mattress topper back into the original shipping box. We offer free replacements or refunds without requiring a return!

SaleNo. 17

EGOHOME 14 Inch King Size Memory Foam Mattress for Back Pain, Cooling Gel Mattress Bed in a Box, Made in USA, CertiPUR-US Certified, Therapeutic Medium Mattress, 76x80x14 Black

Cooling Fabric Combine with Graphene Technology: In short, this Cool-sensation Cover is designed to regulate your body temperature and keep you comfortable during sleep. Without the negative aspects of fiberglass and other fire-retardant chemicals, the inner cover of the mattress provides a safe, effective flame-retardant layer around our mattresses.
Most Advanced Memory Foam by MLILY: The top layer- Cooper gel aerofuion memory foam regulate moisture and odor, reducing your risk of skin disease and ensuring a cleaner sleep environment for a healthier sleep and better you. And MLILY Adaptifoam boosts breathability and airflow with latex-free rebound.And the high density base foam will better support your neck, shoulder and give you a comfort sleep.
CertiPUR-US Certified & Endorsed by ICA: Proudly made in USA, MLILY EGO BLACK mattress is crafted for safety, durability, received the International Chiropractors Association’s endorsement and can help people achieve a healthier sleep life. Made without harmful substances, our memory foam and fabrics comply with all applicable mandatory and voluntary safety standards for mattress products.
Mattress in a Box Delivery: Your Mattress will be compressed, rolled, and in a compact box for easy delivery and setup. Wait 12 hours for your memory foam mattress to fully expand to its original shape.
Worry-Free 10 Year Limited Warranty Included: We believe that you will love this sleep item and are dedicated to giving you the best night of sleep through our superior products. If your mattress is defective or damaged during delivery, our U.S.-based customer support team will happily work with you to address any concerns to make it right.Please note that THERE IS NO TRIAL PERIOD, OPENED MATTRESSES CANNOT BE RETURNED.

No. 18

Amazon Basics Memory Foam Mattress, Medium Firm, Cooling Gel, King Size Mattress, CertiPUR-US® Certified Foam, 80 x 76 x 12 inches, White/Gray

SaleNo. 19

PayLessHere 12 Inch Gel Memory Foam Mattress/Bed-in-a-Box/Bed Mattress/Medium Firm Mattress with Removable Cover Fiberglass Free Home Furniture CertiPUR-US Certified/Pressure Relieving (King)

CertiPUR US Certification: The foam has been certified by CertiPUR US and is free of harmful substances such as formaldehyde, mercury and other heavy metals. The memory foam mattress provides comfort and support for a better night's sleep.
High quality materials: Our memory sponge mattresses, combined with professional knowledge and the best materials, adopt advanced sleep technology. Gel memory foam helps with continuous airflow and air permeability; The surface of the mattress is made of skin-friendly fabric to improve breathing ability. The foam layer in the middle is designed as a airflow channel to increase airflow through all areas of the foam mattress.
Humanized design:the design of your mattress comes from the modern bed design, which conforms to the ergonomics and the breeze airflow. Snuggling in the silk soft jacquard top, your spine is perfectly protected. Your medium luxury mattress is very suitable for side sleepers and stomach
Gel Process:The gel on your mattress absorbs excess heat while you sleep, allowing you to fall asleep more quickly.Compared to conventional mattresses, the gel coating increases the mattress's use time and makes it less prone to damage.
Professional packaging:our technology can effectively compress the mattress into a box to facilitate transportation and operation into the bedroom; Just open the box and unfold it, and the mattress will complete the rest of the work. It will return to its original shape within 72 hours

No. 20

Memory Foam Mattress,14 Inch King Mattress in A Box,Green Tea Gel Infused Mattress Medium Firm,Fiberglass Free with Washable Breathable Fabric Cover,CertiPUR-US Certified,120 Nights Risk-Free Trial

【ENHANCED SUPPORT】This gel memory foam mattress offers a slightly plusher feel compared to a traditional firm mattress, providing balanced support for every part of your body. Whether you're a side sleeper, back sleeper, stomach sleeper, or just toss and turn, our king size mattress offers you extraordinary using experience.
【SIMPLE CARE MATTRESS】It includes a cover that is breathable and washable for your convenience. The zipper outside the memory foam mattress makes it easy to take it off and machine wash it. It can be removed and washed regularly, which is simple and easy.
【KING MATTRESS IN A BOX】 The king size mattress is compressed into a sturdy plastic bag and protected by a cardboard box for the convenience of delivery. It is recommended to allow 48-72h for back to its original shape. The king mattresses are compatible with most twin bed frames, RV.Even put the gel memory foam mattress on the floor directly.
【CertiPUR-US CERTIFIED MEMORY FOAM MATTRESS】 Our 12 inch memory foam mattress is CertiPUR-US certified , guaranteeing that it's made with 100% green materials, reduced greenhouse gas emissions, and minimal waste—making it a sustainable choice for your sleep.
【RISK-FREE SLEEP】Enjoy the ultimate in comfort with our king size mattress, backed by a 120-night satisfaction guarantee. Experience it risk-free during the trial period and ensure it provides the best sleep you've ever had.

How to choose a good memory foam king mattresses

Does the idea of finding a fantastic memory foam king mattresses make you anxious? When it comes to purchasing this product, specifically when deciding which model to select, has your head been spinning between options? You are not alone if that is the case. We are aware of the pressure involved in the purchasing process!

Your presence here indicates that you are interested in memory foam king mattresses. Before choosing which product would be the best for your needs after being inundated with information, locate a reliable source with genuine selections. You can get that information from a variety of sources, including buying guides and rating websites, word-of-mouth recommendations from friends and family, online discussion forums where users can share their own experiences, product reviews that can be found all over the internet, and YouTube channels. You can only get the right product through exhaustive analysis. But you realize that’s not always simple. In order to ease your concerns, we have taken the time to develop a list of the top memory foam king mattresses products available right now. You might be wondering how we came up with the list. How was this buying guide developed?

First, we used our algorithms to gather as much reliable data as we could about these products. To verify all the data gathered, we used both artificial intelligence and a lot of algorithms.
Then, our experts used criteria that are recognized in the business to evaluate them according to their quality to price ratio, allowing us to choose the top memory foam king mattresses on the market right now!

The selection of the goods is not arbitrary. Before creating a list, we take into account a number of factors. Below are some of the criteria discussed:

Brand Value: What happens if you choose a dubious brand just because it appears to be a good deal? So the likelihood of receiving a product with a short shelf life increases. That is due to the fact that well-known brands have a reputation to uphold, while others do not. Top memory foam king mattresses brands strive to provide some distinctive traits that set them apart from the competition. So, hopefully one or more of the items on our list will be perfect for you.

Features: Useful features are all you need, not tons of them. We consider the important aspects and select the top memory foam king mattresses based on those.

Specifications: Numbers always help you measure the quality of a product in a quantitative way. We try to find products with higher specifications, but with the right balance.

Quality: A product’s quality may always be quantified with the aid of numbers. We look for goods with better standards that strike the proper balance. The best quality product that gets highly appreciated and recommended by experienced users.

Customer ratings: Would it be accurate to suggest that the memory foam king mattresses were used by hundreds of customers before you? Superior ratings indicate that many customers had better service.

Customer Reviews: Like ratings, provide you with accurate and reliable information about the product from genuine customers. Customer ratings are very important to all of us because they contain accurate and reliable information about the customer service we received from several hundred customers.

Seller Rank: This is very intriguing! Not only do you need a good memory foam king mattresses, you also need a product with rising sales that is trendy. It accomplishes two goals. First, the expanding user base proves the quality of the product. Second, given that number, producers must be able to offer greater quality and after-sales support.

Value: You get what you pay for, they say, so consider the value. Cheap isn’t always good and expensive isn’t always bad. However, that does not imply that spending a lot of money on a product that is flashy but underwhelming is a good idea. Before adding them to the list, we make an effort to evaluate how much value you can get for your money from your memory foam king mattresses.

Durability: Durability and reliability are closely related concepts. You will benefit from a strong and long-lasting memory foam king mattresses for months and years to come.

Product availability: Products come and go, and new ones replace the old ones. Most likely, a few new features and required changes were made. What use is it to use a supposedly good product if the maker no longer supports it? We make an effort to highlight products that are current and offered by one or more trustworthy sellers, if not more.

Negative Reviews: Yes, we do take that into account as well! The goods with the majority of bad reviews are filtered out and disregarded when we choose the best-rated one on the market.

These are the standards by which we selected our memory foam king mattresses. Do we end our process there? Hell no. The most crucial fact about us that you should be aware of is that we regularly update our website with current and pertinent information. We have one more layer of filtration since we place the greatest importance on reader satisfaction. Please let us know if any product included here is incorrect, irrelevant, subpar, or simply out of date. We always value your opinions, and we’ll work hard to make any necessary corrections to our list in response to them.

Why should you believe us?

There are now thousands of possibilities for these products on Amazon, but choosing the best one can be difficult and time-consuming. And what memory foam king mattresses should you purchase in 2022?

This guide is the result of more than 10 years of experience in researching, testing and writing about many topics. Each member of our team is an authority in their area. We read every article we could find online and every consumer review on every retail website for seven hours. Additionally, we discovered a ton of websites that offered helpful resources, including buying tips and thorough information on memory foam king mattresses.

Louis Ortega

Louis is a professional writer who has been in the industry for 10 years. He writes articles as well as reviews products and services, aiming to provide insightful and entertaining content.

All Posts

The 8 Best memory foam king mattresses of 2025

An overview of our top picks

Table of contents

The best memory foam king mattresses you can buy today

How to choose a good memory foam king mattresses

Why should you believe us?

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An overview of our top picks

Table of contents

The best memory foam king mattresses you can buy today

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Why should you believe us?

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