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California King Firm 12" Gel/Foam Mattress - Signature Design by Ashley Gel Memory Foam & Adjustable Base 83.0 H x 71.0 W 12.0 D | Wayfair

With the Hybrid 1200 California mattress and adjustable base set, you have endless possibilities for restful sleep. Feel the support of a truly traditional coil mattress which contours to your body for a comforting feel. High-density foam provides the... more

King Firm 12" Gel/Foam Mattress - Sleep Innovations Marley Medium Gel Memory Foam 80.0 H x 76.0 W 12.0 D | Wayfair 3073846

The triple-layer design of the Marley mattress keeps you cool and supported all night long. The gel memory foam top layer and supportive middle layer with airflow channels provide a cooling effect, helping to maintain a comfortable climate while you... more

King Firm 12" Gel/Foam Mattress - Signature Design by Ashley Gel Memory Foam & Adjustable Base 79.0 H x 75.0 W 12.0 D | Wayfair PKG009983

With the Hybrid 1200 mattress and adjustable base set, you have endless possibilities for restful 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... more

California King Firm 12" Gel/Foam Mattress - Vibe Gel Memory Foam 12-Inch | CertiPUR-US Certified Bed-in-a-Box 84.0 H x 72.0 W 12.0 D Wayfair

Good mornings, good feelings, good times, good Vibe. The Vibe 12-inch Gel Memory Foam Mattress combines two leading sleep technologies at an incredible value. Gel-infused memory foam keeps you cool during sleep and body-contouring memory foam reduces... more

California King Firm 12" Gel/Foam Mattress - Slumber Solutions Gel Memory Foam 84.0 H x 72.0 W 12.0 D | Wayfair 35602-03491-WF

This firm mattress features a tight top and low-motion transfer, so it's designed to keep you asleep even if your partner tosses and turns. It has a breathable structure with a base layer, a comfort foam layer, and a gel memory foam layer. This 12"... more

King Firm 12" Gel/Foam Mattress - Signature Design by Ashley Gel Memory Foam & Adjustable Base 79.0 H x 75.0 W 12.0 D | Wayfair PKG009985

With the Hybrid 1200 queen mattress and adjustable base set, you have endless possibilities for restful sleep. Feel the support of a truly traditional coil mattress which contours to your body for a comforting feel. High-density foam provides the... more

King Firm 12" Gel/Foam Mattress - Wade Logan® Ardean 12-Inch Hybrid Reactive Medium Soft Gel Memory Foam Mattress, Breathable, Zipper System 80.0 H x 76.0 W 12.0 D | Split 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

California King Firm 12" Gel/Foam Mattress - Signature Design by Ashley Gel Memory Foam & Adjustable Base 83.0 H x 71.0 W 12.0 D | Wayfair

With the Hybrid 1200 queen mattress and adjustable base set, you have endless possibilities for restful sleep. Feel the support of a truly traditional coil mattress which contours to your body for a comforting feel. High-density foam provides the... more

California King Firm 12" Gel/Foam Mattress - Gel Memory Foam 84.0 H x 72.0 W 12.0 D ComforPedic Loft from Beautyrest | Wayfair 35602-04777-WF

Elevate your sleep experience with this Comforpedic Loft from the Beautyrest gel memory foam mattress. This upscale gel memory foam mattress provides three layers of support for a luxuriously comfortable sleeping experience. The gel memory foam... more

California King Firm 12" Gel/Foam Mattress - Alwyn Home Petros Gel Memory Foam 84.0 H x 72.0 W 12.0 D | Wayfair DD197AE395144292B326681C20ADFE7F

Alwyn Home gel memory foam mattress is perfect for sweet dreams. In this 12" firm mattress, Combined with cool gel memory foam, charcoal-infused foam, and high-density charcoal foam, this 12-inch mattress provides a 3-layer foam system design that... more

King Firm 12" Gel/Foam Mattress - Wade Logan® Ardean 12-Inch Hybrid Reactive Medium Soft Gel Memory Foam Mattress, Breathable, Zipper System 80.0 H x 76.0 W 12.0 D | 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 - Slumber Solutions Gel Memory Foam 80.0 H x 76.0 W 12.0 D | Wayfair 35602-03490-WF

This firm mattress features a tight top and low-motion transfer, so it's designed to keep you asleep even if your partner tosses and turns. It has a breathable structure with a base layer, a comfort foam layer, and a gel memory foam layer. This 12"... more

King Firm 12" Gel/Foam Mattress - Signature Design by Ashley Gel Memory Foam & Adjustable Base 79.0 H x 75.0 W 12.0 D | Wayfair PKG009983

With the Hybrid 1200 mattress and adjustable base set, you have endless possibilities for restful 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... more

King Firm 12" Gel/Foam Mattress - Gel Memory Foam 80.0 H x 76.0 W 12.0 D ComforPedic Loft from Beautyrest | Wayfair 35602-04776-WF

Elevate your sleep experience with this Comforpedic Loft from the Beautyrest gel memory foam mattress. This upscale gel memory foam mattress provides three layers of support for a luxuriously comfortable sleeping experience. The gel memory foam... more

King Firm 12" Gel/Foam Mattress - Crafted Sleep Two-Sided Gel Memory Foam 80.0 H x 76.0 W 12.0 D | Wayfair XBXCFT12FCHK

The 12" 2-sided all-foam model ensures the best motion reduction and can also be flipped to either a medium or a firm side or you can choose medium on both sides. This all-foam mattress packs in gel-infused cooling foams with an ultra-supportive... more

King Firm 12" Gel/Foam Mattress - Spinal Solution 12-Inch Hybrid Gel w/ Moisture Wicking, Cooling System, Breathable 80.0 H x 76.0 W 12.0 D | Split 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 - The Twillery Co.® Powhattan 12-Inch Gel Soft Mattress, Standard Size, Breathable, Zippered Cover | 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

California King Firm 12" Gel/Foam Mattress - The Twillery Co.® Gel Memory Foam 84.0 H x 72.0 W 12.0 D | Wayfair EDB82CF398FB48E5919F1044A6062645

This 12" thick mattress features a tight top and low-motion transfer, so it's designed to let you stay asleep even if your partner tosses and turns. Two layers of firm gel memory foam provide a firm foundation and a breathable design to help cool you... more

California King Firm 12" Gel/Foam Mattress - Signature Design by Ashley Gel Memory Foam & Adjustable Base 83.0 H x 71.0 W 12.0 D | Wayfair

With the Hybrid 1200 mattress and adjustable base set, you have endless possibilities for restful 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... more

King Firm 12" Gel/Foam Mattress - Spinal Solution 12-Inch Hybrid Gel w/ Moisture Wicking, Cooling System, Breathable 84.0 H x 72.0 W 12.0 D | Split California 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 - Alwyn Home Gastonville Gel Memory Foam & Pressure Relief Medium 80.0 H x 76.0 W 12.0 D | Wayfair

Cradling Comfort: The Alwyn Home 12-inch full-size mattress features 8 layers of premium memory foam, gel memory foam, and innerspring that provide lasting comfort and support, atop your mattress fully adapts to your unique body shape and relieves... more

California King Firm 12" Gel/Foam Mattress - Slumber Solutions Renew Gel Memory Foam 84.0 H x 72.0 W 12.0 D | Wayfair 35602-04405-WF

Surround yourself with luxury with this premium gel memory foam mattress. Our mattresses are specifically made with quality and comfort in mind. Using high-grade gel memory foam and covers, this mattress will keep you comfortable for years to come.... more

King Firm 12" Gel/Foam Mattress - Alwyn Home Petros Gel Memory Foam 80.0 H x 60.0 W 12.0 D | Wayfair 7EC324971A4941C8836964816AEEBBE8

Alwyn Home gel memory foam mattress is perfect for sweet dreams. In this 12" firm mattress, Combined with cool gel memory foam, charcoal-infused foam, and high-density charcoal foam, this 12-inch mattress provides a 3-layer foam system design that... more

King Firm 12" Gel/Foam Mattress - BedNew Modern Series Medium Hybrid w/ Gel Memory Foam Pillow Top 80.0 H x 76.0 W 12.0 D | Wayfair BN02-30-12K-1

Do you find your mattress too hard and uncomfortable to sleep on? Are you worried that a soft mattress won't provide enough support? Look no further! BedNew medium-firm hybrid mattress is the perfect selection. Combining pocketed springs and memory... more

California King Firm 12" Gel/Foam Mattress - Wayfair Sleep™ Gel Memory Foam 83.0 H x 71.0 W 12.0 D | 4C151848352C4A62B8C7F8F0C6B88C78

Get responsive and supportive comfort with the 12” Firm Gel Memory Foam Mattress. This mattress has a top layer of latex-like foam that keeps you sleeping on top of your mattress instead of sinking into it and provides more responsive comfort.... more

King Firm 12" Gel/Foam Mattress - Signature Design by Ashley Gel Memory Foam & Adjustable Base 79.0 H x 75.0 W 12.0 D | Wayfair PKG009984

With the Hybrid 1200 California mattress and adjustable base set, you have endless possibilities for restful sleep. Feel the support of a truly traditional coil mattress which contours to your body for a comforting feel. High-density foam provides the... more

King Firm 12" Gel/Foam Mattress - Signature Design by Ashley Gel Memory Foam & Adjustable Base 79.0 H x 75.0 W 12.0 D | Wayfair PKG009956

Luxury comfort leads to luxury rest. This firm queen mattress soothes your body with cottony softness on the mattress cover. Packed inside are layers of support foam and gel memory foam to relieve your pressure points. Rows of power packed wrapped... more

California King Firm 12" Gel/Foam Mattress - Sleep Innovations Marley Medium Gel Memory Foam 84.0 H x 72.0 W 12.0 D | Wayfair 3073843

The triple-layer design of the Marley mattress keeps you cool and supported all night long. The gel memory foam top layer and supportive middle layer with airflow channels provide a cooling effect, helping to maintain a comfortable climate while you... more

King Firm 12" Gel/Foam Mattress - Signature Design by Ashley Gel Memory Foam & Adjustable Base 79.0 H x 75.0 W 12.0 D | Wayfair PKG009958

Luxury comfort leads to luxury rest. This firm king mattress soothes your body with cottony softness on the mattress cover. Packed inside are layers of support foam and gel memory foam to relieve your pressure points. Rows of power packed wrapped coils... more

California King Firm 12" Gel/Foam Mattress - Signature Design by Ashley Gel Memory Foam & Adjustable Base 83.0 H x 71.0 W 12.0 D | Wayfair

With the Hybrid 1200 California mattress and adjustable base set, you have endless possibilities for restful sleep. Feel the support of a truly traditional coil mattress which contours to your body for a comforting feel. High-density foam provides the... more

King Firm 12" Gel/Foam Mattress - Slumber Solutions Renew Gel Memory Foam 80.0 H x 76.0 W 12.0 D | Wayfair 35602-04404-WF

Surround yourself with luxury with this premium gel memory foam mattress. Our mattresses are specifically made with quality and comfort in mind. Using high-grade gel memory foam and covers, this mattress will keep you comfortable for years to come.... more

King Firm 12" Gel/Foam Mattress - Alwyn Home Gel Memory Foam | Wayfair 521E6C48148C46F191189F15C40F4951

Are you tired of waking up from the night of discomfort and unrest? It's time to discover a budget friendly, high quality mattress for seeking a restful night's sleep. The foam mattress keeps your body aligned and motion transfer minimal, offering a... more

King Firm 12" Gel/Foam Mattress - Spinal Solution 12-Inch Hybrid Gel w/ Moisture Wicking, Cooling System, Breathable 80.0 H x 76.0 W 12.0 D | 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

California King Firm 12" Gel/Foam Mattress - Spinal Solution 12-Inch Hybrid Gel w/ Moisture Wicking, Cooling System, Breathable 84.0 H x 72.0 W 12.0 D | 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 Medium Firm 12" Gel/Foam Mattress - L'Baiet L’Baiet 12” Gel Memory Foam Mattress, Size 79.0 H x 75.0 W 12.0 D | 12.0" L 75.0" 79.0" Wayfair

Discover the ultimate in comfort and convenience with our 12-inch cool gel memory foam mattress. Its innovative gel memory foam, equipped with cooling comfort technology, offers unparalleled pressure relief, cradling your body's unique contours and... more

King Medium Firm 12" Gel/Foam Mattress - Brooklyn Bedding 12 inch Gel Memory Foam Hybrid 80.0 H x 76.0 W 12.0 D | Wayfair BBMGHY1266

Introducing the new Brooklyn Bedding Select Gel Memory Foam Hybrid Mattress, including comfort and support - our medium firm mattress, meticulously designed to redefine your sleep experience. Crafted with a blend of cooling technology and strong edge... more

California King Medium Firm 12" Gel/Foam Mattress - Brooklyn Bedding 12 inch Gel Memory Foam Hybrid 84.0 H x 72.0 W 12.0 D | Wayfair BBMGHY1267

Introducing the new Brooklyn Bedding Select Gel Memory Foam Hybrid Mattress, including comfort and support - our medium firm mattress, meticulously designed to redefine your sleep experience. Crafted with a blend of cooling technology and strong edge... more

King Medium Firm 12" Gel/Foam Mattress - ANMIZ Hybrid Gel Memory Foam for Cool Sleep & Pressure Relief | Wayfair AM01-L2B12KI-US

ANMIZ mattresses offers a medium firm feel and meets most people's sleep preferences, not too hard not too soft. This foam mattress conforms to your body, providing personalized support. Get the perfect balance of contoured comfort and reliable support... more