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California King Firm Gel/Foam Mattress - Blissful Nights Two-Sided 12" Medium & Gel Memory Foam | Split Wayfair SB-MT-ISWITCH-6/0split

This 2-in-1 mattress allows you to switch the comfort and feel by simply flipping it. Each sleep surface of the mattress was thoughtfully designed with gel memory foam to dissipate heat and allow air to travel throughout for a comfortable night’s... more

King Firm 11" Gel/Foam Mattress - Spinal Solution 11-Inch Ananda Pearl & Gel Reactive Latex Memory Foam w/ Zipper, Medium Firm, Breathable | 80 H x 76 W 11 D in Wayfair

The 11" Ananda mattress combines comfort and support with our pearl and gel-infused reactive memory foam. Our reactive foam provides a natural bounce to the foam, providing you with additional push-back support as it conforms to your sleeping position.... more

California King Firm 10" Memory Foam Mattress - Ergo-Pedic Zencloud Original Infused Medium-Firm in Brown | 84 H x 72 W 10 D Wayfair F10CBDPK84

REDEFINING THE SCIENCE OF SLEEP. Upgrade your current beds with the world’s first high-performance mattresses designed to promote health benefits beyond the mechanics of simple physical comfort. At Ergo-Pedic Sleep, we’ve developed our mattresses to be... more

California King Firm 14" Gel/Foam Mattress - RELYMATRE Medium-Firm Gel Memory Foam | 84 H x 72 W 14 D in Wayfair RE-MSCK0114

The 14-inch Memory Foam Hybrid Mattress is the perfect combination of soft and firm. It ensures that your body weight is evenly distributed and your spine is naturally aligned. Enjoy a restful night's sleep whether you're lying on your back, side or... more

California King Firm 10" Memory Foam Mattress - Ergo-Pedic Coppercloud Infused Medium-Firm in Brown | 84 H x 72 W 10 D Wayfair F10CPRK84

Transform your sleep with the CopperCloud Original Mattress. Infused with copper, this mattress actively pulls excess heat away from your body, resulting in a cooler and more comfortable sleep. Copper is a natural anti-inflammatory that helps reduce... more

California King Medium Firm 10" Memory Foam Mattress - Alwyn Home Morin No Infusions | 84 H x 72 W 10 D in Wayfair F0A188417E294B4FB8974790C0A9ABC7

Add a sense of comfort to your night with this 10-inch memory foam mattress. With a medium firmness, the layered foam produces an optimal level of pressure point relief and support that cannot be achieved by any traditional memory foam mattress.... more

California King Firm 13" Gel/Foam Mattress - MOLECULE CopperWELL Hybrid Cooling Gel Memory Foam & Encased Coil Medium | 84 H x 72 W 13 D Wayfair

Achieve your best night’s sleep with the CopperWELL Hybrid Mattress. Featuring MoleculeEdge foam encased coils for advanced edge support, reducing or eliminating that roll-off feeling. It absorbs partner movement and prevents sleepers from rolling... more

California King Firm 12" Gel/Foam Mattress - Sleep Innovations Marley Medium Gel Memory Foam | 84 H x 72 W 12 D in 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

California King Medium Firm 14" Gel/Foam Mattress - Wayfair Sleep™ Plush Cooling Gel Memory Foam | 83 H x 71 W 14 D in

Put an end to tossing and turning all night: swap out your tired bed for this 14" memory foam mattress. Crafted using three layers of hypoallergenic memory foam with edge support and a tight top that lends it a medium-firm feel, this mattress is... more

California King Medium Firm 14" Gel/Foam Mattress - Alwyn Home Palatino 14 Inch Gel Infused Memory Foam Hybrid Pocket Coils | 72 W x D in Wayfair

The 14-inch hybrid mattress perfectly combines soft gel-infused memory foam with a supportive pocket coil base, creating a medium firmness that's suitable for all kinds of sleepers. You could enjoy the softness from the euro top without sacrificing... more

California King Medium Firm 10" Memory Foam Mattress - Alwyn Home Gerben 10 in Aquarius | 84 H x 72 W D Wayfair 540158AE6F504A1F98F9ECDCB7C3A5E1

Quality Medium Firm Mattress - Offers the ideal level of comfort and support for all sleeping positions. Perfectly balanced to relieve pressure and sleepless nights. Mattress Size: California King | California King Medium Firm 10" Memory Foam Mattress... more

California King Firm 8" Gel/Foam Mattress - Sleep Innovations Marley Medium Gel Memory Foam | 84 H x 72 W 8 D in Wayfair 3073827

Improve your sleep with the essential comfort of our 8 inch, two layer gel memory foam Marley Mattress. The soft knit hypoallergenic cover immediately relaxes you with lasting freshness, while soothing gel memory foam actively reduces excess body heat... more

California King Firm 10" Gel/Foam Mattress - Sleep Innovations Marley Medium Gel Memory Foam | 72 W x 10 D in Wayfair 3073835

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

California King Medium 10" Memory Foam Mattress - Wayfair Sleep™ | 84 H x 10 D in F4A8AF0A8AA34D54A9ABE7CEE4A264E4

This memory foam mattress updates your bed with support and a breathable feel all at once. It has a medium-firm feel made up of three layers: a high-density base foam, ventilated pressure relief foam, and a top layer of memory foam infused with green... more

California King Firm 5" Foam Mattress - The Twillery Co.® Bearcreek Medium-Firm | 83 H x 71 W 5 D in Wayfair 4AF5D37609CD490F9DBB201EC361F218

Transform your sleep sanctuary with our gel memory foam mattress, featuring cutting-edge technology and thoughtful design. The advanced gel-infused memory foam adapts to your body, providing a cool and comfortable night's sleep. The medium-firm support... more

California King Medium 6" Gel/Foam Mattress - Alwyn Home Lowesville Cooling Gel Memory Foam | 84 H x 72 W 6 D in Wayfair

Experience supreme comfort and a cool, refreshing sleep with the mattress. The mattress is uniquely designed with gel-infused memory foam to regulate your body temperature, providing a cooler sleep environment throughout the night. Say goodbye to... more

California King Firm 12" Gel/Foam Mattress - Crafted Sleep Two-Sided Gel Memory Foam | 84 H x 72 W 12 D in Wayfair XBXCFT12FCHCK

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

California King Firm 14" Memory Foam Mattress - Alwyn Home | 84 H x 72 W 14 D in Wayfair 16D68C7295AB41CCAE5878D3A5860DFB

This medium-plush Mattress is a hybrid mattress, offering the comfort of foam with the sturdy support of springs. Produced with 3-zoned Hourglass Pocket Spring Technology, this mattress adapts to all body types and helps to relieve pressure on points... more

California King Medium Firm 14" Foam Mattress - DANLONG Mattress, Fiberglass | 84 H x 72 W 14 D in Wayfair AB0129MSTCKI-5474

The 14" Gel Memory Foam Hybrid Mattress is a top-of-the-line mattress. This firm hybrid mattress combines the posture support of pocket springs with the pressure relief of soft, cooling memory foam for a plush sleep surface. With its hybrid innerspring... more

California King Firm 10" Hybrid Mattress - Sleep Innovations Marley Medium | 80 H x 38 W 10 D in Wayfair 3073007

Sleep soundly and supported on our 10-inch, four-layer memory foam and innerspring Marley Hybrid Mattress. The combination of an innerspring coil system and cooling gel memory foam provides a balance of support and comfort. A cool-touch cover relaxes... more

California King Medium Firm 10" Foam Mattress - The Twillery Co.® Water-Resistant High Density Vinyl | 84 H x 72 W 10 D in Wayfair

This mattress is made from waterproof vinyl and memory foam, so it offers comfort while keeping sleepers comfortable and clean. It's 10'' thick with medium firmness and a tight top, blending support and padding - great for everyone, but especially back... more

California King Medium Firm 8" Foam Mattress - Brooklyn Bedding 8 | 84 H x 72 W D in Wayfair BBMGHY0867

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" Foam Mattress - Brooklyn Bedding 12 | 84 H x 72 W D in 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

California King Medium Firm 14" Foam Mattress - Brooklyn Bedding 14 | 84 H x 72 W D in Wayfair BBMGHY1467

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 10" Foam Mattress - Alwyn Home Alahomora 10 | 72 H x 84 W D in Wayfair 084B2409F5084D1EAA374FB2793B8543

Level up your sleep with the pressure relieving comfort of the Vibe 10" Gel Memory Foam Mattress in a Box. This medium-firm mattress feature 2 proprietary foam layers featuring open cell formulations and manufacturing processes to make the more... more

California King Medium Firm 12" Foam Mattress - Wayfair Sleep™ Sleep 12 Inch Pocket Spring w/ CertiPUR-US Certified Layer, Hybrid | 84 H x 72 W D in

This 12" mattress has a tight top and low motion transfer, so it's designed to let you stay asleep, even if your partner tosses and turns. Its layers of memory foam have a medium firmness, a breathable design, and moisture-wicking properties to help... more

California King Medium Firm 10" Foam Mattress - Alwyn Home Cevallos 10 | 84 H x 72 W D in Wayfair 215CB321C86D4478BA758EFAEEE53E94

Experience complete relaxation with this premium memory foam mattress. With no noisy springs, you don’t bounce up and down every time someone moves. Mattress firmness is a matter of personal preference, but you can’t go wrong with this medium firm bed... more

California King Medium Firm 10" Foam Mattress - Brooklyn Bedding 10 | 84 H x 72 W D in Wayfair BBMGHY1067

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 10" Memory Foam Mattress - Avenco Hybrid | 84 H x 72 W 10 D in Wayfair AHMS029-US0125-CLK

If a mattress that offers both customized support and comfort is on your list, look no further than this 10" Hybrid Memory Foam Mattress, Medium Firm Bed in a Box. This 10-inch hybrid mattress offers luxury and superior comfort for a deep and... more

California King Medium 10" Gel/Foam Mattress - Alwyn Home Horst Gel Memory Foam | 84 H x 72 W 10 D in Wayfair 0FEA73812595452AA9CC7F9E47C55534

Experience the ultimate sleep comfort with our new Gel Memory Foam Mattress. Crafted with two layers of proprietary foam using an innovative open-cell formula and production process, this medium-firm mattress enhances breathability, keeping you cool... more

California King Medium 8" Gel/Foam Mattress - Alwyn Home Felan Gel Memory Foam | 84 H x 72 W 8 D in Wayfair 99D13648FBF844CBAC3D1FA7DD6DCF34

Experience the ultimate sleep comfort with our new Gel Memory Foam Mattress. Crafted with two layers of proprietary foam using an innovative open-cell formula and production process, this medium-firm mattress enhances breathability, keeping you cool... more

California King Medium 10" Memory Foam Mattress - Leesa Original | 84 H x 72 W 10 D in Wayfair LEOR1067

A fan favorite, customer reviews of the Leesa Original mattress prove it offers a comfortable balance of both soft and firm. Its exclusive top layer is designed to keep you cool, while premium memory foam contours to your shape, minimizing pressure... more

California King Medium 8" Memory Foam Mattress - Alwyn Home Bentson | 72 H x 84 W 8 D in Wayfair 8FF8DB4600F8460488E4621447EF5EB9

Level up your sleep with the pressure relieving comfort of the Vibe 8" Gel Memory Foam Mattress in a Box. This medium-firm mattress feature 2 proprietary foam layers featuring open cell formulations and manufacturing processes to make the more... more

California King Medium 14" Memory Foam Mattress - HOME CASA | 84 H x 72 W 14 D in Wayfair HCSJ-MAT3-CK

Experience cool and breathable nights with high-density open-cell foam. Versatile placement on any firm surface. Quick shape recovery for prompt use. Optimal support with upgraded pocketed innerspring design. Enjoy undisturbed sleep with individually... more

California King Medium 14" Memory Foam Mattress - HOME CASA | 84 H x 72 W 14 D in Wayfair HCSJ-MAT3-CK

Experience cool and breathable nights with high-density open-cell foam. Versatile placement on any firm surface. Quick shape recovery for prompt use. Optimal support with upgraded pocketed innerspring design. Enjoy undisturbed sleep with individually... more

California King Medium 10" Memory Foam Mattress - Tempur-Pedic Tempur Cloud | 84 H x 72 W 10 D in Wayfair 10279180

Made with a combination of soft and firm Tempur® materials for the perfect medium feel, our Tempur Cloud® medium features superior conforming comfort and motion isolation so you can sleep soundly and get more restorative rest. Mattress Size: California... more

California King Medium 12" Memory Foam Mattress - HOME CASA | 84 H x 72 W 12 D in Wayfair HCSJ-MAT2-CK

Experience cool and breathable nights with high-density open-cell foam. Versatile placement on any firm surface. Quick shape recovery for prompt use. Optimal support with upgraded pocketed innerspring design. Enjoy undisturbed sleep with individually... more

California King Medium 8" Gel/Foam Mattress - Vibe Gel Memory Foam | 84 H x 72 W 8 D in Wayfair 20.2153.23.05.96

Experience the pressure-relieving comfort of premium gel memory foam with the Vibe 8” gel memory foam mattress. This medium-firm mattress is comprised of 2 proprietary foam layers featuring open cell formulations and manufacturing processes to make... more