Furniture › Bedroom Furniture › King › 20 x 12 inch rectangular

Queen Firm 12" Gel/Foam Mattress - Dynasty 12 Inch CoolBreeze Gel Memory Foam w/ Cover, | 80 H x 60 W D in Wayfair 12-INCH GEL COOLBREEZE

Wake up ready to take on the day with a full night's sleep with Dynasty Mattress's CoolBreeze Gel Memory Foam Mattress in King. After a long day ensure you get a restful sleep to recharge. Unmatched comfort and quality produce this gel memory foam... more

King 12" Gel/Foam Mattress - Alahomora Hybrid 12 Inch Full Mattress; Cooling Gel Infused & Individual Pocket Spring | 80 H x 76 W D in Wayfair

Good sleep can help people relieve fatigue; relax their brains; and be more energetic the next day. Choosing a good mattress can help you improve the quality of sleep. From now on; deep sleep is no longer a dream. Independent pocket spring system; each... more

King 16" Hybrid Mattress - The Twillery Co.® Laird 12-Inch Ultra Plush Euro Top Single Sided w/ Box Spring/Foundation | 80 H x 76 W 16 D in Wayfair

Enjoy the sweetest dreams possible with this ultra plush memory foam mattress and Euro top, which is firmer around the edges and softer in the center. With its independent springs that minimize motion transfer and provide body pressure relief, pocket... more

King 20" Hybrid Mattress - The Twillery Co.® Laird 12-Inch Ultra Plush Euro Top Single Sided w/ Box Spring/Foundation | 80 H x 76 W 20 D in Wayfair

Enjoy the sweetest dreams possible with this ultra plush memory foam mattress and Euro top, which is firmer around the edges and softer in the center. With its independent springs that minimize motion transfer and provide body pressure relief, pocket... more

King Firm 20" Foam Mattress - Alwyn Home Alibi 12-Inch Medium Cooling EuroTop Pocket Coil Bed In A Box w/ Split Spring | 80 H x 76 W 20 D in Wayfair

This mattress has springs with independent springs that minimize motion transfer and provide body pressure relief, Pocket mattresses are a great option for almost anyone. Even lovers of memory foam or other foam mattresses can benefit from Pocket... more

Twin 12" Memory Foam Mattress - Signature Design By Ashley 12 Inch Chime 2.0 Plush | 75 H x 38 W D in Wayfair M42611

Stretch out and let the cares of the day fade away. This ultra-plush king mattress is crafted for modern comfort and convenience, with layers including refreshing green tea foam and response memory foam that support and contour to your body. Even... more

Queen 12" Memory Foam Mattress - Signature Design By Ashley 12 Inch Chime 2.0 Plush | 80 H x 60 W D in Wayfair M42631

Stretch out and let the cares of the day fade away. This ultra-plush king mattress is crafted for modern comfort and convenience, with layers including refreshing green tea foam and response memory foam that support and contour to your body. Even... more

Full 12" Memory Foam Mattress - Signature Design By Ashley 12 Inch Chime 2.0 Plush | 75 H x 53 W D in Wayfair M42621

Stretch out and let the cares of the day fade away. This ultra-plush king mattress is crafted for modern comfort and convenience, with layers including refreshing green tea foam and response memory foam that support and contour to your body. Even... more

King 12" Memory Foam Mattress - Signature Design By Ashley 12 Inch Chime 2.0 Plush | 80 H x 76 W D in Wayfair M42641

Stretch out and let the cares of the day fade away. This ultra-plush king mattress is crafted for modern comfort and convenience, with layers including refreshing green tea foam and response memory foam that support and contour to your body. Even... more

Twin 12" Memory Foam Mattress - Signature Design By Ashley 12 Inch Chime 2.0 Plush | 75 H x 38 W D in Wayfair M42611

Stretch out and let the cares of the day fade away. This ultra-plush king mattress is crafted for modern comfort and convenience, with layers including refreshing green tea foam and response memory foam that support and contour to your body. Even... more

King Firm 12" Hybrid Mattress - Spinal Solution 12-Inch Medium Pillow Top Heavier Pocket Coil Spring | 80 H x 76 W 12 D in Wayfair PC302-6/6-1

A pocket coil pillow top medium firm mattress is a type of mattress that combines several features to provide a comfortable and supportive sleeping surface. The mattress typically consists of a layer of individually wrapped coils, which are designed to... more

King Firm 12" Hybrid Mattress - The Twillery Co.® Griggs 12-Inch Medium EuroTop Breathable Mattress, Compatible w/ Adjustable Bed | 80 H x 76 W 12 D in Wayfair

This mattress has pocket springs. With their independent springs that minimize motion transfer and provide body pressure relief, Pocket mattresses are a great option for almost anyone. Even lovers of memory foam or other foam mattresses can benefit... more

King 12" Memory Foam Mattress - Nestl Green Tea Cooling 12 Inch | 80 H x 76 W D in Wayfair WF-NB-MFM-12-K

Your Sleep Haven Awaits Engineered for superior comfort and thermal regulation, the Nestl Green Tea & Graphite Memory Foam Mattress promotes a consistently cool sleep environment, with three layers of CertiPur-US certified, premium memory foam infused... more

King Medium 12" Gel/Foam Mattress - Spinal Solution 12-Inch Gel w/ Zipper, Removable & Washable Cover, Breathable | 80 H x 60 W 12 D in Wayfair

This luxurious twelve-inch mattress is truly one-of-a-kind. It blends cooling gel and natural crushed pearls directly into the premium memory foam. Unique cooling fibers are woven into the cover, which neutralizes temperature variations while you... more

Queen Firm 12" Gel/Foam Mattress - The Twillery Co.® Powhattan 12-Inch Gel Soft Mattress, Standard Size, Breathable, Zippered Cover, Edge Support | 80 H x 60 W 12 D in Wayfair

This 8" mattress has a tight top, edge support, and low-motion transfer, so it's designed to let you stay asleep, even if you or your partner toss and turn. With layers of gel memory foam, this mattress offers a firm feel, so it's great for those who... more

King Firm 12" Gel/Foam Mattress - Spinal Solution 12-Inch Hybrid Gel w/ Moisture Wicking, Cooling System, Breathable | 80 H x 76 W 12 D in Wayfair

Made with temperature-controlling properties, the 12” hybrid gel mattress dissipates heat for a comfortable sleep throughout the night. Individually wrapped coils, encased with foam, reinforce the mattress edges to increase the sleep surface of this... more

King Firm 12" Gel/Foam Mattress - Wade Logan® Ardean 12-Inch Hybrid Reactive Medium Soft Gel Memory Foam Mattress, Breathable, Zipper System | 80 H x 76 W 12 D in Wayfair

The 12” hybrid reactive mattress contains a revolutionary foam that provides a buoyant push-back similar to a latex-like material. This top layer, made of 1.7” reactive foam, complements the base layer, offering the support of a firm mattress without... more

King Firm 12" Gel/Foam Mattress - Wade Logan® Ardean 12-Inch Hybrid Reactive Medium Soft Gel Memory Foam Mattress, Breathable, Zipper System | 80 H x 76 W 12 D in Wayfair

The 12” hybrid reactive mattress contains a revolutionary foam that provides a buoyant push-back similar to a latex-like material. This top layer, made of 1.7” reactive foam, complements the base layer, offering the support of a firm mattress without... more

Queen Firm 12" Gel/Foam Mattress - The Twillery Co.® Potrero 12-Inch Gel Air Foam Standard Size, Breathable, Zip-off Cover, Low Motion Transfer | 80 H x 60 W 12 D in Wayfair

This 8" mattress has a tight top, edge support, and low-motion transfer, so it's designed to let you stay asleep, even if you or your partner toss and turn. With layers of gel memory foam, this mattress offers a firm feel, so it's great for those who... more

King Firm 12" Gel/Foam Mattress - Spinal Solution 12-Inch Hybrid Gel w/ Moisture Wicking, Cooling System, Breathable | 80 H x 76 W 12 D in Wayfair

Made with temperature-controlling properties, the 12” hybrid gel mattress dissipates heat for a comfortable sleep throughout the night. Individually wrapped coils, encased with foam, reinforce the mattress edges to increase the sleep surface of this... more

King 12" Gel/Foam Mattress - The Twillery Co.® Polla 12-Inch Plush Gel Ultra Soft Mattress, Cooling Technology, Moisture Wicking, Breathable | 80 H x 76 W 12 D in Wayfair

Sink into plush comfort every night. This 12" mattress has a tight top, edge support, and low-motion transfer, so it's designed to let you stay asleep, even if you or your partner toss and turn. Its three layers of gel memory foam offer a plush feel... more

King Firm 12" Gel/Foam Mattress - The Twillery Co.® Potrero 12-Inch Gel Air Foam Standard Size, Breathable, Zip-off Cover, Low Motion Transfer | 80 H x 60 W 12 D in Wayfair

This 8" mattress has a tight top, edge support, and low-motion transfer, so it's designed to let you stay asleep, even if you or your partner toss and turn. With layers of gel memory foam, this mattress offers a firm feel, so it's great for those who... more

King Firm 12" Mattress - White Noise 12-inch Zoned Reactive w/ Zipper, Medium Firm, Breathable, Machine Washable | 80 H x 76 W 12 D in Wayfair

The Zoned mattress has 4 specialty targeted zones designed for specific regions of the body. Each zone provides the perfect amount of conformity to keep the spine in a neutral position, allowing you to rest easily. The gel-infused foams and Flex-air... more

King 12" Memory Foam Mattress - Nestl Green Tea Cooling 12 Inch | 80 H x 76 W D in Wayfair WF-NB-MFM-12-K

Your Sleep Haven Awaits Engineered for superior comfort and thermal regulation, the Nestl Green Tea & Graphite Memory Foam Mattress promotes a consistently cool sleep environment, with three layers of CertiPur-US certified, premium memory foam infused... more

King Firm 12" Gel/Foam Mattress - The Twillery Co.® Powhattan 12-Inch Gel Soft Mattress, Standard Size, Breathable, Zippered Cover, Edge Support | 80 H x 60 W 12 D in Wayfair

This 8" mattress has a tight top, edge support, and low-motion transfer, so it's designed to let you stay asleep, even if you or your partner toss and turn. With layers of gel memory foam, this mattress offers a firm feel, so it's great for those who... more

King Firm 12" Mattress - White Noise 12-inch Zoned Reactive w/ Zipper, Medium Firm, Breathable, Machine Washable | 80 H x 76 W 12 D in Wayfair

The Zoned mattress has 4 specialty targeted zones designed for specific regions of the body. Each zone provides the perfect amount of conformity to keep the spine in a neutral position, allowing you to rest easily. The gel-infused foams and Flex-air... more

King Firm 12" Mattress - Spinal Solution 12-Inch Dual Comfort & Soft w/ Pocket Coil Springs, Split Level | 80 H x 76 W 12 D in Wayfair 9065-6/6-1

Customizable Comfort, Targeted Support, and Versatility in One : Indulge in the ultimate sleep innovation with our Dual-Comfort Mattress, a masterful blend of customization, targeted support, and versatility. This innovative mattress offers you and... more

King Medium 12" Hybrid Mattress - Alwyn Home Aralene 12-Inch Pocket Spring | 80 H x 76 W 12 D in Wayfair 62A7328530A148C1BF111A02A50FD226

Our 12-inch hybrid mattress is designed to provide you with a comfortable and restful sleep experience at an affordable price. Our hybrid mattresses seamlessly combine the contouring properties of memory foam with the traditional support of a pocket... more

King Medium 12" Hybrid Mattress - Avenco Pillow Top | 84 H x 76 W 12 D in Wayfair AC-NDSM30K00F-HK

Our mattress will perfectly adapt to your body line and give you excellent support. Designed with 2.36-inch high resilience foam, 0.39-inch latex foam, 0.39-inch rayon from bamboo foam, and 26-inch pocket spring, this full-size memory foam mattress... more

King 12" Foam Mattress - Brooklyn Bedding Plush | 75 H x 39 W 12 D in Wayfair WS12P66-K

Set the stage for the good night's rest you deserve with this 12" Plush Innerspring Mattress. It offers a plush comfort level through its four layers: two inches of base foam, six inches of individually pocketed coils, three inches of soft premium... more

King 12" Gel/Foam Mattress - O By Neven Allume Plush Charcoal Infused Gel Memory Foam | 80 H x 76 W 12 D in Wayfair 10044-OM-12A-KG

O by Neven is a modern and affordable mattress built with your sleep needs in mind. If you are looking for the ultimate comfort combined with advanced cooling technology, the Allume from O by Neven mattress is the ideal choice. This 12-inch, 5-layered... more

King Firm 12" Memory Foam Mattress - White Noise Poar Reversible Plush | 80 H x 76 W 12 D in Wayfair 7C464F3B609F4F5F81B22068ECEC5011

Two different comfort options all in one mattress! This unique 12-inch reversible mattress will change the way you sleep by allowing you to choose a plush or firm side. The Feran Ice cover keeps you cool while you rest and the G Flex cool Gel memory... more

King Firm 12" Foam Mattress - Signature Design by Ashley 12 Inch Chime Adjustable Base w/ | 79 H x 75 W D in Wayfair M674M6

Memory foam mattresses are a hot trend for good reason. But for some, they simply get a bit too toasty for comfort. Rest easy. This king memory foam mattress and adjustable base set has you covered with the cradling feel you love and temperature... more

King Firm 12" Foam Mattress - Signature Design by Ashley 12 Inch Chime Adjustable Base w/ | 79 H x 75 W D in Wayfair M674M4

Memory foam mattresses are a hot trend for good reason. But for some, they simply get a bit too toasty for comfort. Rest easy. This king memory foam mattress and adjustable base set has you covered with the cradling feel you love and temperature... more

King 12" Hybrid Mattress - Signature Design by Ashley 12 Inch Foundation w/ | 79 H x 59 W D in Wayfair M628M8

The Hybrid 1200 queen mattress and foundation set is simply a better way to get a great night’s sleep. Feel the support of a truly traditional coil mattress which contours to your body for a comforting feel. High-density foam provides the firmness you... more

King Firm 12" Hybrid Mattress - The Twillery Co.® Perry Capri Comfortable Sleep 12 Inch CertiPUR-US Certified Pocket Spring | 80 H x 76 W D in Wayfair

Set the stage for a good night’s sleep with this 12” medium hybrid mattress. It features high-density foam that contours to your body while you sleep. What’s more, the contouring technology built into this mattress limits motion transfer so your... more

King 12" Hybrid Mattress - Signature Design by Ashley 12 Inch Pocketed Queen | 79.5 H x 76 W D in Wayfair M59041X

Enjoy endless possibilities for restful sleep with this hybrid innerspring mattress. You get the best of both worlds: the pressure relief of cooling gel-infused memory foam, coupled with body-contouring pocketed coils for superior support. Rest assured... more

King 12" Hybrid Mattress - Luuf Simplicity Cooling 12 Inch | 80 H x 76 W D in Wayfair EOQZNUA-1060

Our most affordable adult mattress ever, the LuuF Simplicity is designed for all sleeping positions. Multiple layers of cooling comfort provide the ideal amount of hug and contour while offering personalized support for each sleeper. Mattress Size:... more