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Cocobase Mattress Foundation - California King Size

The CoCoBase Mattress Base is made with a 5 inch durable coconut fiber coconut coir. This new material created by untwisting coconut husks is infused with natural latex. The Spring like qualities of Coconut Coir can be built to utilize the natural... more

Mattress Foundation - Low Profile, California King Split - Ballard Designs

Take your nighttime comfort to the next dreamy level with our luxurious and supportive Mattress Foundations. Box edge frames are hand built by Amish craftsmen from solid spruce wood in three profiles, Slim, Low and High, to custom fit your bed and... more

California King Firm 12" Memory Foam Mattress - Signature Design by Ashley Chime | 79 H x 12 D in Wayfair M72751

When it comes to your comfort, chime in for this Signature Design by Ashley Chime Firm Memory Foam Mattress. Its foam contours to your body delivering amazing support, pressure relief, and comfort. The thick memory foam layer is supported by a super... more

Signature Design by Ashley Hybrid 1400 White California King Mattress

With this California king mattress, you have endless possibilities for restful sleep. Its power packed wrapped coils contour to your body. Layers of foam—including response memory foam—provide support and comfort. more

Signature Design by Ashley Limited Edition Firm Black/White 2-Piece California King Mattress Package

Luxury comfort leads to luxury rest. This firm California 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. more

California King Medium Firm 11.5" Gel/Foam Mattress - Tuft & Needle Mint Gel Foam Mattress, Ceramic | 84 H x 72 W 11.5 D in Wayfair 910810163-8070

With two sleepers in mind, we designed the mint mattress with an extra layer of patented T&N adaptive foam technology and reinforced support edges. These provide personalized softness, medium-firm support, and heat regulation for deep, restful sleep.... more

Ashley Furniture Ultra Luxury Pillow Top Mattress with Hyper-Cool Technology - California King

Enjoy endless possibilities for restful sleep with the Ultra Luxury pillow top mattress with hyper-cool technology. more

Signature Design by Ashley Foundation Metal Box Spring Metal | California King | Wayfair M98X92

Designed to cater to your busy lifestyle and built to last, this innovative foundation is ready to assemble in the comfort of your home. The unique shippable design is the perfect alternative to the standard box spring. Constructed of sturdy metal... more

Signature Design Chime 12 Inch Memory Foam California King Mattress in White - Ashley Furniture M72751

Signature Design Chime 12 Inch Memory Foam California King Mattress in White - Ashley Furniture M72751 When it comes to your comfort, discover the Ashley-Sleep® California king mattress. Its memory foam layer contours to your body delivering amazing... more

Signature Design by Ashley 14-inch Ashley Hybrid California King Mattress

The ultimate in size and comfort the Ashley Furniture 14-inch Ashley Hybrid Black and Grey California King Mattress has three inches of high-density gel memory foam for ultimate lumbar support; plus three inches of high-density cushion foam for a luxury… more

California King Medium 12.5" Innerspring Mattress - Sealy Posturepedic Mill Park Tight Top & Box Spring Set | 84 H x 72 W 12.5 D in Wayfair

This mattress features the trusted motion-reducing encased coils and targeted memory foam support of similar Posturepedic Spring mattresses with a medium feel. A reinforced edge improves durability, while cover treatments help to keep you cool, and the... more

California King Medium 10" Gel/Foam Mattress - Signature Design By Ashley Gel Memory Foam & Adjustable Base | 83.46 H x 72.05 W 10 D in Wayfair

Enjoy endless possibilities for restful sleep with this hybrid king innerspring mattress and adjustable base set. You get the best of both worlds: the pressure relief of cooling gel-infused memory foam, coupled with body-contouring pocketed coils for... more

California King 12" Hybrid Mattress - Signature Design by Ashley Chime Ultra Plush | 12 D in Wayfair M69751

Enjoy endless possibilities for restful sleep with this hybrid innerspring mattress. High-density foam provides the firmness you love. Gel memory foam provides restorative support for your lower back. Hypoallergenic material is ideal for sufferers of... more

Signature Design by Ashley Millennium Luxury Gel Latex and Memory Foam California King Mattress

When it comes to your comfort, discover the luxury of this California king gel memory foam mattress. A layer of cooling gel latex and two layers of temperature-regulating material keep you at a comfortable temperature all night long. more

California King 10" Gel/Foam Mattress - Signature Design by Ashley Serena Gel Foam | 83 H x 71 W 10 D in Wayfair M58951

Enjoy endless possibilities for restful sleep with the Gruve hybrid innerspring mattress. You get the best of both worlds: the pressure relief of cooling gel-infused memory foam for superior support. Rest assured that high-density quilt foam provides... more

California King 13.5" Mattress - Serta Perfect Sleeper Nurture Night Plush | 83.5 H x 72 W 13.5 D in Wayfair 500304012-1070

The all-new 2023 Perfect Sleeper collection featuring a coil density system, this supportive mattress offers zoned comfort and pressure relief with a lumbar gel support band—with upgrades available with more cooling layers and support. Mattress Size:... more

California King 14.5" Hybrid Mattress - Serta Arctic Premier Plush | 83.5 H x 72 W 14.5 D in Wayfair 500430828-1070

The Serta Arctic Premier 14.5" Plush Hybrid Cooling Mattress is the perfect combination of all-night cooling and individualized support with an incredible plush feel. It is engineered with 15x better cooling power*—helping to keep you comfortable all... more

California King Extra Firm 13.75" Hybrid Mattress - Beautyrest Silver BRS900-C & Box Spring Set | 72 H x 83.5 W 14 D in Wayfair 700810109-9970

Better you begin with a better night's sleep. The lasting resilience of Beautyrest silver ensures you'll be more awake™ every day for years to come. Mattress Size: California King, Box Spring Height: Standard Profile (9") | California King Extra Firm... more

California King Medium 14.5" Innerspring Mattress - Beautyrest Silver BRS900-C | 84 H x 76 W 14.5 D in Wayfair 700810110-1070

Better you begin with a better night's sleep. The lasting resilience of Beautyrest silver ensures you'll be more awake every day for years to come. Mattress Size: California King | California King Medium 14.5" Innerspring Mattress - Beautyrest Silver... more

California King Medium 10.5" Hybrid Mattress - Wayfair Sleep™ Sleep | 83 H x 71 W 10.5 D in 7C90D11A08CF4D47A2D045C5AFB57515

Get the zzz's you need with this hybrid mattress. It features five layers including 10.5" of memory foam, high-density base foam, wrapped innerspring, plush poly foam, and a memory foam pillow top that helps relieve pressure and adds a little extra... more

Signature Design by Ashley Limited Edition Firm Black/White 2-Piece California King Mattress Package

Luxury comfort leads to luxury rest. This firm California 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. more

California King 13.5" Hybrid Mattress - Beautyrest Black LX-Class Plush | 72 H x 83.5 W 13.5 D in Wayfair 700811493-1070

Elevate your sleep to a luxurious reward night after night. Our most advanced collection yet, the Beautyrest Black Hybrid 13.5" Plush Mattress offers up to 21% more support where your body needs it the most.* With help from our new plant-based cooling... more

California King Medium 13.5" Innerspring Mattress - Beautyrest Black L-Class | 83.5 H x 79.5 W 13.75 D in Wayfair 700811471-1070

Elevate your sleep to a luxurious reward night after night. As a part of our most advanced collection yet, the Beautyrest Black L-Class 13.5" medium mattress offers up to 21% more support where your body needs it the most. With help from our new... more

California King Firm 5" Foam Mattress - Alwyn Home 5-Inch Medium Tight top High Density Rolled for RV, Cot, Folding Bed & Daybed | 84 H x 72 W 5 D in Wayfair

A firm mattress with high-density foam comfort and pressure-relieving support for a better night's sleep. A foam mattress has a quilted cover for added comfort. Compressed, rolled, and shipped in a box for a simple setup, it easily fits through narrow... more

California King Medium 16" Innerspring Mattress - Beautyrest Silver BRS900-C Pillow Top & Box Spring Set | 75 H x 83.5 W 16 D in Wayfair

Sleep on a Beautyrest Silver 16" medium pillow top mattress and box spring and wake up rejuvenated. The sophisticated design and intuitive technologies found help provide comfort, support, and pressure relief. Try it for yourself and you’ll see.... more

California King Firm 13.75" Innerspring Mattress - Beautyrest Black C-Class Mattress, Latex | 72 H x 83.5 W 13.75 D in Wayfair 700811474-1070

Elevate your sleep to a luxurious reward night after night. As a part of our most advanced collection yet, the Beautyrest black C-class 13.75" firm mattress offers up to 21% more support where your body needs it the most. With help from our new... more

California King 14.5" Innerspring Mattress - Beautyrest Silver BRS900-C Plush & Box Spring Set | 84 H x 72 W 9 D in Wayfair 700810111-9970

Better you begin with a better night's sleep. The lasting resilience of Beautyrest silver ensures you'll be more awake™ every day for years to come. Mattress Size: California King, Box Spring Height: Standard Profile (9") | California King 14.5"... more

California King Medium 16" Innerspring Mattress - Beautyrest Silver BRS900-C Pillow Top & Box Spring Set | 75 H x 83.5 W 16 D in Wayfair

Sleep on a Beautyrest Silver 16" medium pillow top mattress and box spring and wake up rejuvenated. The sophisticated design and intuitive technologies found help provide comfort, support, and pressure relief. Try it for yourself and you’ll see.... more

California King Medium 14.5" Innerspring Mattress - Beautyrest Silver BRS900-C & Box Spring Set | 80 H x 60 W 14.5 D in Wayfair 700810110-9870

Better you begin with a better night's sleep. The lasting resilience of Beautyrest silver ensures you'll be more awake every day for years to come. Box Spring Height: Low Profile (5"), Mattress Size: California King | California King Medium 14.5"... more

California King 9.5" Foam Mattress - Tuft & Needle Original | 84 H x 72 W 9.5 D in Wayfair 910810252-8070

With patented T&N Adaptive® foam technology, the T&N original mattress delivers body contouring and bounce-back support. Our foam helps prevent deep body impressions while wicking away heat for deep, restful sleep. It is excellent for back and stomach... more

California King 9" Waterbed Mattress - Strobel Hydro-Support Patented Double-Wall Leak-Proof-1700dw 5-9-5 Layer Fiber Waveless Deep fill Hard-side | 9 H x 72 W 84 D in Wayfair

Premium water mattress features 25 mil vinyl (25% thicker than most), Deep molded Feather top pressure reduction surface for greatest conforming comfort, lumbar support with 5-8-5 fiber layer waveless system - tethered to corners to prevent shifting,... more

California King Medium 12.5" Innerspring Mattress - Sealy Posturepedic Mill Park Tight Top | 84 H x 72 W 12.5 D in Wayfair 52952562

This mattress features the trusted motion-reducing encased coils and targeted memory foam support of similar Posturepedic Spring mattresses with a medium feel. A reinforced edge improves durability, while cover treatments help to keep you cool, and the... more

California King 15" Hybrid Mattress - Beautyrest Black CX-Class Plush | 79.5 H x 83.5 W 15 D in Wayfair 700811495-1070

Elevate your sleep to a luxurious reward night after night. Our most advanced collection yet, the Beautyrest black hybrid 15" plush mattress offers up to 21% more support where your body needs it the most.* with help from our new plant-based cooling... more

California King Firm 13.5" Foam Mattress - Ernest Hemingway Skylark Tight Top | 84 H x 72 W 13.5 D in Wayfair 627M-6C

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

California King 14.5" Innerspring Mattress - Beautyrest Silver BRS900-C Plush | 84 H x 72 W 14.5 D in Wayfair 700810111-1070

Better you begin with a better night's sleep. The lasting resilience of Beautyrest silver ensures you'll be more awake™ every day for years to come. Mattress Size: California King | California King 14.5" Innerspring Mattress - Beautyrest Silver... more

California King Medium 14.25" Innerspring Mattress - Beautyrest Black C-Class Pillow Top Mattress, Latex | 79.5 H x 83.5 W 14.25 D in Wayfair

Elevate your sleep to a luxurious reward night after night. As a part of our most advanced collection yet, the Beautyrest Black C-Class 14.25" Medium Pillow Top Mattress offers up to 21% more support where your body needs it the most.* With help from... more

California King Firm 15.75" Innerspring Mattress - Beautyrest Black K-Class Pillow Top Mattress, Latex | 74.5 H x 83.5 W 15.75 D in Wayfair

Elevate your sleep to a luxurious reward night after night. As the premier offering in our most advanced collection yet, the Beautyrest Black K-Class 15.75" Firm Pillow Top Mattress offers up to 21% more support where your body needs it the most.* With... more

California King Medium 14.25" Innerspring Mattress - Beautyrest Black L-Class Pillow Top | 79.5 H x 83.5 W 14.25 D in Wayfair 700811473-1070

Elevate your sleep to a luxurious reward night after night. As a part of our most advanced collection yet, the Beautyrest Black L-Class 14.25" Medium Pillow Top Mattress offers up to 21% more support where your body needs it the most.* With help from... more