Furniture › Bedroom Furniture › Mattresses & Boxsprings › California King › 4 w x 4 h

California King Firm 10" Foam Mattress - Alwyn Home Delilah Top Type | 84 H x 72 W 10 D in Wayfair 09462912178C4E36ACC10A1B0F12F16A

The beautiful rest mattress is a medium plush foam encased, euro top mattress innerspring mattress. This will meet your “dream” goal of comfort, quality & beauty. 13 3/4 sh gauge units, foam encased with high-density foam, and 1" high-density fiber pad... more

California King Medium 4" Memory Foam Mattress - Alwyn Home Laya Topper w/ Fabric Cover & CertiPUR-US Certified | 84 H x 72 W 4 D in Wayfair

Introducing our luxurious Mattress Topper, featuring D40 gel memory foam, a refreshing white cooling fabric, gray knitted fabric on the sides towards the foot of the bed, diamond-embossed mesh fabric at the bottom, corner double-buttoned elastic... more

California King 9" Waterbed Mattress - Strobel Hydro-Support-1600 4-8-4 Layer Fiber Waveless Deep fill Hard-side | 9 H x 72 W 84 D in Wayfair

Features:Mattress Type: Hard-sidePrimary Material: FoamUpholstery Material Details: Mattress Size: Fill: Deep fillFlow: WavelessBladder: SinglePieces Included: Frame Required: YesFrame Included: NoLiner Required: YesLiner Included: NoStain Resistant:... more

California King 9" Waterbed Mattress - Strobel Hydro-Support-1600 4-8-4 Layer Fiber Waveless Deep fill Hard-side | 9 H x 72 W 84 D in Wayfair

Features:Mattress Type: Hard-sidePrimary Material: FoamUpholstery Material Details: Mattress Size: Fill: Deep fillFlow: WavelessBladder: SinglePieces Included: Frame Required: YesFrame Included: NoLiner Required: YesLiner Included: NoStain Resistant:... more

Alwyn Home Easy Wood Box Spring/Foundation w/ Simple Assembly Wood in Brown | 4.5 H x 71.5 W x 83.5 D in | Wayfair FE3D5A2BEA7E447FAFB3E80B71932310

We are a proud manufacturer of the finest quality mattresses and box springs, with the highest standards in durability, quality, comfort, and beauty. All of our products are to ensure that you get only the best. Size: California King, Profile: Low... more

Alwyn Home 8-Inch Fully Assembled Traditional Box Spring/Foundation For Mattress, California King Size in Brown | 4 H x 76 W x 79 D in | Wayfair

We are a proud manufacturer of the finest quality box Springs, with the highest standards in durability, quality, comfort, & beauty. All of our products are made in the USA to ensure that you get only the best! This item is part of our Hollywood... more

Alwyn Home 8-Inch Fully Assembled Traditional Box Spring/Foundation For Mattress, California King Size in Brown | 4 H x 76 W x 79 D in | Wayfair

We are a proud manufacturer of the finest quality box Springs, with the highest standards in durability, quality, comfort, & beauty. All of our products are made in the USA to ensure that you get only the best! This item is part of our Hollywood... more

Beautyrest Triton Foundation Wood in Brown | 4 H x 85 W x 76 D in | Wayfair 700810116-9870

This box spring offers support, durability, and reduced motion. When used with a proper supportive bed frame, it helps prevent sagging and bowing for the life of the mattress. Size: California King, Profile: Low | Beautyrest Triton Foundation Wood in... more

California King 9" Waterbed Mattress - Strobel Century Super Eight 4 Layer Fiber Waveless Deep fill Hard-side | 9 H x 72 W 84 D in Wayfair 12600S8K

Features:Water-Mattress Super 8Full 20 mil American Made vinyl (10% thicker than manyFiber is thermally bonded for longest life, not resin bondedReinforced cornersStrobel one-piece constructionMattress Type: Hard-sidePrimary Material: FoamUpholstery... more

California King Firm 12" Mattress - White Noise 12-inch Zoned Reactive w/ Zipper, Medium Firm, Breathable, Machine Washable | 84 H x 72 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

California King Firm 12" Mattress - White Noise 12-inch Zoned Reactive w/ Zipper, Medium Firm, Breathable, Machine Washable | 84 H x 72 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

California King Firm 12" Mattress - White Noise 12-inch Zoned Reactive w/ Zipper, Medium Firm, Breathable, Machine Washable | 84 H x 72 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

California King Medium 12" Gel/Foam Mattress - Nora® by Wayfair Sleep Nora Gel Memory Foam w/ Icy Cool Cover | 84 H x 72 W 12 D in

This 12" thick 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. Four layers of gel and memory foam have a medium firmness and a breathable design that helps to keep you... more

California King 14" Hybrid Mattress - Alwyn Home Dillman Plush Mattress, Copper in Brown | 84 H x 76 W 14 D Wayfair

Support your core and sleep in comfortable luxury with this 14" hybrid lux memory foam and wrapped coil mattress. This smooth top mattress features an amazing six premium layers of comfort for a great night's sleep. This special mattress boasts a 4"... more

California King Medium 10" Gel/Foam Mattress - O By Neven Nuance Gel Memory Foam | 84 H x 72 W 10 D in Wayfair 10044-OM-10N-CK

O by Neven is a modern and affordable mattress built with your sleep needs in mind. The 10-inch Nuance from O by Neven provides comfort, adaptability, and a slimmer profile perfect for the modern sleeper. 4 unique layers make the Nuance an exceptional... more

California King Firm 11" Foam Mattress - The Twillery Co.® Marcela Cooling Fast Responding Latex in Brown | 84 H x 72 W 11 D Wayfair

Experience ultimate comfort on the Marcela 11" Latex Foam Mattress. The 4 layer craftsmanship features a breathable, Bamboo Charcoal knit cover, Cooling Copper Infused Memory Air Foam, and fast-responding, hypoallergenic Talalay Latex Foam atop... more

California King 14" Innerspring Mattress - Wayfair Sleep™ Plush Mattress, Polyester | 84 H x 72 W 14 D in 16EA3C3522574050AA1E40E1BC9DA0D1

This 14" thick 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. Four layers of memory foam and innerspring give it a plush feeling with a breathable, moisture-wicking... more

California King Firm 10" Gel/Foam Mattress - Avenco Gel Memory Foam | 72 H x 84 W 10 D in Wayfair A-M01803-10-CLK

Designed with 4 different layers of foam, this mattress provides you with a comfortable sleep experience. Gel memory foam combined with a comfort foam layer, and with air-flow wave foam underneath, it brings you great relief and support and also keeps... more

California King 14" Foam Mattress - Brooklyn Bedding Sedona | 84 H x 72 W 14 D in Wayfair BBSD67

The Sedona Elite by Brooklyn bedding represents our most luxurious, handcrafted mattress —offering resort-style sleep through an exceptional pairing of premium quality foams and a proprietary, high-end coil system. The top four foam layers create an... more

California King Medium 11" Gel/Foam Mattress - The Twillery Co.® Tamalpais Cooling GelCare Memory Foam in Brown | 84 H x 72 W 11 D Wayfair

Experience ultimate comfort on the Tamalpais 11" Memory Foam Mattress. The 4 layer craftsmanship features a breathable, Bamboo Charcoal knit cover, Cooling Copper Infused Memory Air Foam, and GelCare Comfort Foam atop high-density support foam. The... 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 Firm 13" Foam Mattress - White Noise & Box Spring, Wood | 84 H x 78 W 13 D in Wayfair ANEW2622 41549470

State-of-the-art technology meets exquisite luxury in the extra Pedic mattress. Treat yourself to the top-of-the-line mattress. Mattress Specifications: 396 innerspring vertical unit, with 13 3/4 SH gauge unit, foam encased with edges supported with... more

California King 12" Gel/Foam Mattress - Wayfair Sleep™ Plush Cooling Gel Memory Foam | 83 H x 71 W 12 D in C46989AFA3CC4D7DA96E3EC5D3AD0BA1

Get the sleep you deserve with a mattress that supports you, like this 12" memory foam option. Crafted using four layers of hypoallergenic memory foam with a tight top for a plush feel, this mattress is perfect for those who like to sink into their bed... more

California King Medium 10" Innerspring Mattress - White Noise Sofia & Box Spring | 75 H x 39 W 10 D in Wayfair 1EC6A8EF604647719ED9608D5004D990

The beautiful rest mattress is a medium plush foam encased, euro top mattress innerspring mattress. This will meet your “dream” goal of comfort, quality & beauty with 13 3/4 SH gauge units, foam encased with high-density foam, and a 1" high-density... more

California King 12" Innerspring Mattress - Wayfair Sleep™ Plush Mattress, Polyester | 84 H x 72 W 12 D in BBC39C43503B4932AAA6978786A72755

This 12" thick 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. Four layers of memory foam and coils give it a plush feeling with a breathable, moisture-wicking design... more

California King 10" Innerspring Mattress - Wayfair Sleep™ Plush Mattress, Polyester | 84 H x 72 W 10 D in 0EDE7531034A432EA6179C3DD30C7625

This 10" thick mattress has a Euro top and low motion transfer, so it's designed to let you stay asleep, even if your partner tosses and turns. Four layers of memory foam and pocket coils give it a plush feeling with a breathable, moisture-wicking... more

California King 14" Hybrid Mattress - Brooklyn Bedding Standard Plush w/ Cooling Cover | 84 H x 72 W 14 D in Wayfair BBM1467S

The Brooklyn Bedding Standard 14" plush, cooling, hybrid mattress provides a well-supported night's sleep without compromising comfort. This Brooklyn Bedding Standard 14" plush, cooling, hybrid mattress maximizes comfort and support through its encased... more

California King Firm 14" Gel/Foam Mattress - Corsicana Hospitality 14-Inch Luxury Hybrid Pocket Coil Cooling Gel Foam | 84 H x 76 W 14 D in Wayfair

14 inch Luxury firm pocketed coil mattress with cooling gel foam Mattress Size: California King | California King Firm 14" Gel/Foam Mattress - Corsicana Hospitality 14-Inch Luxury Hybrid Pocket Coil Cooling Gel Foam | 84 H x 76 W 14 D in Wayfair 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

California King Medium 12" Hybrid Mattress - Tuft & Needle Mint Medium-Plush Mattress, Ceramic | 83.25 H x 72 W 12 D in Wayfair 910810316-8070

Offering the best of both worlds, our mint hybrid mattress combines our contouring foam with individually wrapped springs for softness, support, and a little bit of bounce. It's also designed to help you sleep cool, thanks to black diamond memory foam,... more

California King Firm 12" Gel/Foam Mattress - Blissful Nights Two-Sided Medium & Gel Memory Foam | 84 H x 72 W 12 D in Wayfair 12SWITCH-CK

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

Firm 17" Mattress - Stearns & Foster Pillow Top Box Spring | 83 H x 72 W 17 D in Wayfair 43019932

The Stearns & Foster Reserve Collection is our highest expression of quality and the most comfortable mattress we’ve ever made—meticulously designed with our finest materials to deliver one-of-a-kind comfort. Mattress Size: Split California King | Firm... more

California King Firm 16" Mattress - Stearns & Foster Lux Estate Pillow Top | 83 H x 72 W 16 D in Wayfair 53019462

The Stearns & Foster Lux Estate Collection provides an elevated level of comfort and support, with the added benefit of features to help keep you cool, all night long. Mattress Size: California King | California King Firm 16" Mattress - Stearns &... more

California King Firm 14" Hybrid Mattress - Bear w/ 2 Free Pillows | 84 H x 72 W 14 D in Wayfair BE14LF67

Phase change material, or PCM as it’s commonly called, uses thermoregulation to absorb your body heat and keep you cool all night long. We paired this with our breathable Celliant fiber so you can sleep comfortably and wake up refreshed. Mattress Size:... more

California King Medium 12" Hybrid Mattress - Brooklyn Bedding Standard w/ Cooling Cover | 80 H x 72 W 12 D in Wayfair BBM1267M

The Brooklyn Bedding Standard 12" medium, cooling, hybrid mattress provides a well-supported night's sleep without compromising comfort. This Brooklyn Bedding Standard 12" medium, cooling, hybrid mattress maximizes comfort and support through its... more

California King 13" Innerspring Mattress - Sealy Posturepedic Plush | 84 H x 72 W 13 D in Wayfair 52728762

It features trusted sealy quality with targeted back and core support, a reinforced edge for increased durability, and an antibacterial soft knit cover that wicks away moisture and keeps the mattress protected. Plush feel. Mattress Size: California... 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 Firm 12" Memory Foam Mattress - Tempur-Pedic TEMPUR-ProAdapt | 84 H x 72 W 12 D in Wayfair 10736180

Continuous innovation for continuous comfort. The TEMPUR-ProAdapt® Firm mattress is expertly engineered with the most pressure-relieving material we've ever created and one-of-a-kind cooling technology. It adapts and conforms to your body’s unique... more