Furniture › Bedroom Furniture › Mattresses & Boxsprings › California King › king mattress 12 inch medium

California King Medium 12" Memory Foam Mattress - BOMO Two-Sided | 84 H x 72 W 12 D in Wayfair JJ-MX-24031529

A comfortable mattress can give you a quality sleep environment, so that you can sleep comfortably all night. This product uses high quality filler, strong support, can well support your body, will not appear back pain situation. The overall simple... more

California King Medium 12" Memory Foam Mattress - Alwyn Home Kupang | 84 H x 72 W 12 D in Wayfair E9E871B8B72A4BC1815F2166F1BA1246

A comfortable mattress can give you a quality sleep environment, so that you can sleep comfortably all night. This product uses high quality filler, strong support, can well support your body, will not appear back pain situation. The overall simple... more

California King Medium 12" Gel/Foam Mattress - Alwyn Home Gadre Gel Memory Foam | 84 H x 72 W 12 D in Wayfair 05A5DE4B78384DCAAE658479337E5E72

The mattress is made from multiple layers of memory foam for a medium firmness. The design of the mattress infused with gel memory foam is not only breathable and adjusts the temperature, but also keeps you cool and comfortable while you sleep,... more

California King Medium 12" Memory Foam Mattress - Alwyn Home Malinta | 84 H x 72 W 12 D in Wayfair C60CF79A70D842B4AB92B64C743E6C2F

Our 12” gel memory foam mattress is ergonomically designed to provide the right amount of support based on pressure points while keeping your spine aligned, so you can stay away from back pain every morning. The three layers of memory foam work... more

California King Medium 12" Gel/Foam Mattress - Slumber Solutions Gel Memory Foam | 84 H x 72 W 12 D in Wayfair 35602-03486-WF

Perfectly personalizing your sleep experience, providing unbeatable comfort with a gel memory foam mattress. Infusing gel particles with Visco elastic memory foam helps to create an optimal temperature for an ideal sleep environment. With an open-cell... more

California King Medium 12" Memory Foam Mattress - Alwyn Home Deale Infused in Brown | 84 H x 72 W 12 D Wayfair 38C0364E622C45C7A053516585811385

This mattress can help alleviate spine discomfort, promote sleep well and make you feel good. Feels so healthy when waking up. it is a product you should choose. Mattress Size: California King | California King Medium 12" Memory Foam Mattress - Alwyn... more

California King Medium 12" Innerspring Mattress - Sealy Posturepedic Mill Street Tight Top & Box Spring Set | 84 H x 72 W 12 D in Wayfair 42950562

Featuring 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. Medium feel. Mattress Size: California... more

California King Medium 12" Memory Foam Mattress - Nora® by Wayfair Sleep Nora Latex Hybrid | 84 H x 72 W 12 D in 7AF283399ECA47CDB51ED83E8765D788

This latex hybrid mattress has 12” of pressure-relieving layers over an encased spring unit for added support and all-night comfort. What’s more, the gel-infused memory foam helps to reduce tossing and turning, and the layer of cooling foam helps keep... more

California King Medium 12.5" Gel/Foam Mattress - Alwyn Home Manda Gel Memory Foam | 84 H x 72 W 12.5 D in Wayfair 3B6C4D5A46ED43B0AB73632C24A02FF8

Experience the ultimate in sleep comfort with our mattress featuring advanced technologies. The CoolTouch Temperature Regulating Fabric ensures a cool and refreshing sleep environment, keeping you comfortable throughout the night. The responsive Gel... more

California King Medium 12.25" Latex Mattress - Alwyn Home Cerqueira Copper Infused | 84 H x 72 W 12.25 D in Wayfair

The Hybrid mattress with all natural latex is a wonderful escape into soft, dreamy splendor. Its multiple-layer structure and advanced technology create a premium mattress. The ThermoBalance cover combines cooling yarns with Tencel for a... more

California King Medium 12" Memory Foam Mattress - Alwyn Home Morgan Charcoal Infused | 84 H x 72 W 12 D in Wayfair D3CE709D31964F24AE3D4E9215CFBEAD

Get a better night's sleep with the balanced support of our comfortable Herbacoal Memory Foam Mattress. Our Green-tea and Charcoal infused memory foam mattress contours to the shape of your body, easing pressure points that can cause discomfort, and... more

California King Medium 12" Innerspring Mattress - Beautyrest BR800 | 75 H x 72 W 12 D in Wayfair 700753475-1070

Get more from your sleep. This 12" Medium Innerspring Mattress combines their legendary Beautyrest Pocketed Coil Technology, DualCool Technology, and Gel Memory foam to help you experience a new level of support, comfort, and temperature management.... more

California King Medium 12" Gel/Foam Mattress - Neven Allure Gel Memory Foam | 84 H x 72 W 12 D in Wayfair 10044-NS-12A-CK-WF

Enjoy our NeutraSleep collection from Neven®. The total comfort and cooling design of our NeutraSleep collection is exceptional. The sensory foam gel, ultraflex foam springs, and airflow channels provide a unique combination of heat dissipation,... more

California King Medium 12" Hybrid Mattress - Early Bird CopperCool Performance in Brown | 83 H x 71 W 12 D Wayfair EBRR30512-1070

Wake up inspired and ready to blaze new trails with the copper cool performance hybrid mattress! Our hybrid mattress combines inner springs with layers of memory and support foams for cradling comfort with a livelier feel. Our advanced copper-infused... more

California King Medium 12" Innerspring Mattress - Sealy Posturepedic Mill Street Tight Top & Box Spring Set | 84 H x 72 W 12 D in Wayfair 42950662

Featuring 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. Medium feel. Box Spring Height: 5, Mattress... more

California King Medium 12" Mattress - Tempur-Pedic ProBreeze® | 84 H x 72 W 12 D in Wayfair 10241262

Experience proven, all-night cooling with the all-new mattress. Featuring specialized cool-to-the-touch covers that work with our exclusive material to help pull heat away from your body so you stay cooler all night long. Mattress Size: California King... more

California King Medium 12" Gel Mattress - BRN Hopewell Cooling Memory Edge Support Pocket Spring Removable Cover Hybrid | 76 H x 72 W 12 D in Wayfair

This 12" hybrid mattress is your key to a night of restful and rejuvenating sleep. An additional layer of memory foam enhances contouring comfort, perfectly complemented by a gel-infused cooling layer to maintain an optimal sleep temperature throughout... more

California King Medium 12" Gel/Foam Mattress - Sleep Innovations Ellis Gel Memory Foam | 84 H x 72 W 12 D in Wayfair 3302019

With Ellis, we raised the bar on cooling tech, for soothing comfort that never quits. On top, a soft, cool cover features instantly cooling fibers that help you relax. Inside, advanced EVENcor GelPlus® memory foam draws heat away from the body, keeping... more

California King Medium 12.5" Hybrid Mattress - Alwyn Home Milperra | 84 H x 72 W 12.5 D in Wayfair 50779F8BFA47498FB52FDCBFA3EA1989

This mattress uses an egg crate embossed design, with the egg crate embossed pattern providing extra plushness to the top layer of foam. The undulation of the foam not only provides even support but also increases airflow to reduce the temperature of... more

California King Medium 12" Hybrid Mattress - Sealy To Go In a Box | 84 H x 72 W 12 D in Wayfair F03-00088-CK0

The mattress is designed to give you the best of both worlds. The unique combination of two innovative comfort technologies provides universal comfort and support for each unique preference and body type. Premium memory foam conforms and responds to... more

California King Firm 12" Innerspring Mattress - Beautyrest Silver BRS900 Medium & Box Spring Set | 74.5 H x 38 W 12 D in Wayfair 700810101-9870

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. Mattress Size: California King, Box Spring Height: Low Profile (5") | California King Firm 12"... more

California King Medium 12" Memory Foam Mattress - Builddecor | 84 H x 72 W 12 D in Wayfair miumiuB05165456

This mattress can help alleviate spine discomfort, promote sleep well and make you feel good. Feels so healthy when waking up. it is a product you should choose. Mattress Size: California King | California King Medium 12" Memory Foam Mattress -... more

California King Medium 12" Memory Foam Mattress - Alwyn Home Landaverde | 84 H x 72 W 12 D in Wayfair 37F1C66A0169407387D9E205BA854A72

A comfortable mattress can give you a quality sleep environment, so that you can sleep comfortably all night. This product uses high quality filler, strong support, can well support your body, will not appear back pain situation. The overall simple... more

California King Medium 12" Foam Mattress - Simmons PeacefulSleep Pillow Top | 79.5 H x 83.5 W 12 D in Wayfair 700812691-1070

The mattress brings you seriously satisfying sleep at prices that won't break the bank. With a traditional quilted top panel, our innerspring models feature first-rate foams to meet your comfort needs, a base layer for sink-free support, and... more

California King Medium 12" Memory Foam Mattress - Sleep Innovations Shiloh | 84 H x 72 W 12 D in Wayfair 3073850

Upgrade your bed with the Shiloh Mattress for head-to-toe comfort, while keeping your body properly aligned, fully supported, and at a comfortable temperature. The Shiloh Mattress features our most cloudlike memory foam technology to help you fall... more

California King Medium 12" Memory Foam Mattress - BRN Tranquility Euro-Top Edge Support Pocket Spring Premium Hybrid | 84 H x 72 W 12 D in Wayfair

Indulge in the comfort of our Euro top hybrid mattress, meticulously crafted with thoughtfully stitched high-quality knitted fabric for a restful sleep and a soft tactile experience. Immerse yourself in layers of comfort memory foam that provide... more

California King Medium 12" Hybrid Mattress - Serta Perfect Sleeper Pacific Peace | 83.5 H x 72 W 12 D in Wayfair 500108881-1070

The all-new 2023 Perfect Sleeper collection features 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 Firm 12" Innerspring Mattress - Beautyrest Silver BRS900 Medium & Box Spring Set | 74.5 H x 38 W 12 D in Wayfair 700810101-9970

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. Box Spring Height: Standard Profile (9"), Mattress Size: California King | California King Firm 12"... more

California King Medium 12" Gel/Foam Mattress - Alwyn Home Tatum Two-Sided Gel Memory Foam & Box Spring | 12 H x 72 W 84 D in Wayfair

Whether you're responsible for purchasing beds for a hospital, nursing home, or personal care home, you need to choose bedding that will keep your patients or residents comfortable while ensuring that your institution remains clean and hygienic. Unlike... more

California King Medium 12" Gel/Foam Mattress - MOLECULE CopperWELL Cooling Gel Memory Foam Plush in Brown | 84 H x 72 W 12 D Wayfair 3073527

Improve your sleep quality, recover faster, and prevent the growth of damaging bacteria and fungus with the MOLECULE CopperWELL Mattress. Featuring CopperWELL copper-infused gel memory foam that provides the perfect blend of pressure relief and... more

California King Medium 12.5" Hybrid Mattress - Alwyn Home Klos Pillow Top | 84 H x 72 W 12.5 D in Wayfair BCC01BEB86CC441A9F5536C537FD0342

Enjoy a more restful sleep with this 13" hybrid pocketed coil innerspring euro pillow top mattress. Feel the extra support and responsiveness of a true pocketed coil hybrid mattress system which contours to your body for a comforting feel. High... more

California King Medium 12" Memory Foam Mattress - Serta Perfect Sleeper Splendid Slumber | 73 H x 85 W 12 D in Wayfair 500088768-1070

This Serta perfect sleeper splendid slumber medium 12" memory foam mattress brings together HexCloud gel memory foam, cradle gel foam, and cool twist gel memory foam in a convenient carton for cool, comfortable sleep. Plus, our antimicrobial mattress... 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 12" Latex Mattress - Southerland Copper Infused | 84 H x 72 W 12 D in Wayfair Z2RPE51PT17284

This hybrid mattress provides life-changing sleep, superior quality, unique texture, and a supple feel. This mattress features our Polar Touch Cooling Cover for a gentle cooling sensation. For elevated comfort and pressure relief, we layered in 100%... more

California King Medium 12" Gel/Foam Mattress - Gel Memory Foam ComforPedic Loft from Beautyrest | 84 H x 72 W 12 D in Wayfair 35602-04771-WF

Elevate your sleep experience with a 12" medium 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 mattress has increased airflow... 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 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 Firm 12" Innerspring Mattress - Beautyrest Silver BRS900 Medium | 84 H x 53 W 12 D in Wayfair 700810101-1070

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 Firm 12" Innerspring Mattress - Beautyrest Silver... more