Furniture › Bedroom Furniture › Mattresses & Boxsprings › California King › best price mattress 18 inch

Alwyn Home Ndayisenga 5 Inch Metal Box Spring, Basics Mattress Foundation, Heavy Duty Steel Slat Bed Frame, Easy Assembly Metal | Wayfair

This 5-inch low-profile box spring is meticulously crafted to offer exceptional support for any mattress. While selecting the perfect mattress is a crucial aspect of creating an ideal sleeping environment, it's equally important to consider the... more

California King 12" Hybrid Mattress - Luuf Simplicity Cooling 12 Inch | 84 H x 72 W D in Wayfair EOQZNUA-1070

Our most affordable adult mattress ever, the LuuF Simplicity is designed for all sleeping positions. Multiple layers of cooling comfort provide the ideal amount of hug and contour while offering personalized support for each sleeper. Mattress Size:... more

California King Medium 13" Hybrid Mattress - Luuf Cooling Comfort 13 Inch | 84 H x 72 W D in Wayfair EJQMMBA-1070

How does a medium bed get so supportive? Our Best Seller! The Cooling Comfort Medium Hybrid is the best choice in the battle between plush and firm; Enjoy the best of both worlds with a plush bed feel that also has firm support. This Luxury Firm... more

California King Firm 9" Memory Foam Mattress - Spinal Solution 9-Inch Medium Flippable w/ Zipper, Low Motion Pass On & Cooling System | 84 H x 72 W 9 D in Wayfair

The 9” Natural Latex mattress is made using the Talalay process and is 100% natural along with a cotton cover; a zipper has also been included for easy spot cleaning. This premium product provides conforming yet buoyant support with excellent... more

California King Firm 12" Gel/Foam Mattress - Spinal Solution 12-Inch Hybrid Gel w/ Moisture Wicking, Cooling System, Breathable | 84 H x 72 W 12 D in 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 12" Memory Foam Mattress - Signature Design By Ashley 12 Inch Chime 2.0 Plush | 84 H x 72 W D in Wayfair M42651

Stretch out and let the cares of the day fade away. This ultra-plush king mattress is crafted for modern comfort and convenience, with layers including refreshing green tea foam and response memory foam that support and contour to your body. Even... more

California King Firm 11" Mattress - Brooklyn Bedding Plank 11-Inch Two-Sided | 84 H x 72 W 11 D in Wayfair BBPL1167

This dual-sided ultra-firm mattress allows you to choose between the firmest sleep experience available—or a medium-firm sleep experience. The choice is yours with just a flip of your mattress. This sleep surface is inspired by the minimalist approach... more

California King Medium 9" Foam Mattress - BRN 9 Inch Excellence Tight-Top Hybrid Aloe Vera Encased Pocket Coil | 84 H x 72 W D in Wayfair GOEXCK

Experience superior comfort and support with our premium mattress, featuring a built-in high-quality individual pocket spring and spring back foam system. This innovative design not only offers excellent body support but also effectively absorbs... more

Alwyn Home 7-Inch Medium Firm High Density Poly Foam Mattress & Unassembled Boxspring/Foundation Set in Brown | 11 H x 72 W x 84 D in | Wayfair

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

King Firm 12" Gel/Foam Mattress - Spinal Solution 12-Inch Hybrid Gel w/ Moisture Wicking, Cooling System, Breathable | 84 H x 72 W 12 D in 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 8" Gel/Foam Mattress - Alwyn Home 8 Inch Luxury Plush Gel Infused Memory Foam & HD Support Smooth Top | 74 H x 39 W D in Wayfair

Three-Layer Smooth Top Mattress. Quilt Layer with Premium Knit Fabric. Comfort Layer with 1" Gel Infused Memory Foam. Support Core with 7" HD Power Core Foam. Mattress Size: California King | California King 8" Gel/Foam Mattress - Alwyn Home 8 Inch... more

California King Firm 13" Hybrid Mattress - Luuf Cooling Support 13 Inch | 84 H x 72 W D in Wayfair EEQMZ3A-1070

Calling all firm mattress fans! Created for back and stomach sleepers and anyone with lumbar pain. Our Cooling Support Firm Hybrid mattress offers support you can feel and comfort that only comes with quality components. Hands down the Best Hybrid... more

California King 13" Hybrid Mattress - Luuf Cooling Comfort Plush 13 Inch | 84 H x 72 W D in Wayfair EJQXMIA-1070

How does a plush bed get so supportive? Our cooling comfort plush hybrid mattress was created for couples, side sleepers, and those seeking to ease hip, shoulder, and joint pain. This plush bed offers an ideal blend of soothing comfort, support, and... more

California King Firm 7" Foam Mattress - Alwyn Home 7-Inch Medium Tight top High Density Rolled | 84 H x 72 W 7 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 simple setup, easily fits through narrow... more

King 14" Gel/Foam Mattress - Spinal Solution 14-Inch Hybrid-Plush Gel w/ Zipper, Low Motion Transfer & Cooling System | 80 H x 76 W 14 D in Wayfair

This luxurious 14" mattress is truly one-of-a-kind. It blends cooling gel and natural crushed pearls directly into the premium memory foam. Unique cooling fibers are woven into the cover, which neutralizes temperature variations while you sleep.... more

Signature Design 10 Inch Chime Memory Foam California King Mattress in White - Ashley Furniture M69951

Signature Design 10 Inch Chime Memory Foam California King Mattress in White - Ashley Furniture M69951 Enjoy endless possibilities for restful sleep with this California king mattress. Soothing memory foam contours to your body, while a thick layer of... more

California King Firm 10" Foam Mattress - Alwyn Home 10-Inch Medium Tight top High Density Rolled | 10 H x 76 W 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 simple setup, easily fits through narrow... 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

Slumber Solutions 12-inch Copper Cool Hybrid Waterfall-Top Mattress, White

Discover the epitome of relaxation with our Cal King Hybrid Copper-Infused Memory Foam Mattress. Its innovative design includes a Cool-touch top fabric with premium cooling fibers, ensuring a refreshing night's sleep. 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

Signature Design 12 Inch Chime Elite California King Mattress in White/Blue - Ashley Furniture M67451

"Signature Design 12 Inch Chime Elite California King Mattress in White/Blue - Ashley Furniture M67451 Memory foam mattresses are a hot trend for good reason—but for some they simply get a bit too toasty for comfort. Rest easy. This 12"" California... more

King Medium 13" Gel/Foam Mattress - Spinal Solution 13-Inch Hybrid-Medium Plush Gel w/ Zipper, Washable Cover, Breathable, Soft | 80 H x 76 W 13 D in Wayfair

This luxurious thirteen-inch mattress blends cooling gel and natural pearls into premium memory foam and is supported by a foam-encased coil system for lofty conforming comfort. Specialty cooling fibers are woven into the cover, which neutralizes... 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 12" Gel/Foam Mattress - Sleep Innovations Skyler 12 Inch Cooling Gel Memory Foam w/ Plush Fiber Fill Pillow Top | 84 H x 72 W D in Wayfair

Discover pure, luxurious bliss on the Skyler Mattress. A plush pillow top covered with fluffy fiberfill softly embraces you from head to toe for instant comfort. Underneath, cooling gel memory foam and airflow channels with enhanced breathability... more

Sierra Sleep Chime 10 Inch Hybrid California King Mattress - Ashley Furniture M69651

"Sierra Sleep Chime 10 Inch Hybrid California King Mattress - Ashley Furniture M69651 Enjoy endless possibilities for restful sleep with this hybrid innerspring California king mattress. You get the best of both worlds—the pressure relief of cooling... more

California King Medium 12" Gel/Foam Mattress - Spinal Solution 12-Inch Gel w/ Zipper, Removable & Washable Cover, Breathable | 80 H x 60 W 12 D in Wayfair

This luxurious twelve-inch mattress is truly one-of-a-kind. It blends cooling gel and natural crushed pearls directly into the premium memory foam. Unique cooling fibers are woven into the cover, which neutralizes temperature variations while you... more

Alwyn Home Lutcher 7 Inch Metal Box Spring, Basics Mattress Foundation, Heavy Duty Steel Slat Bed Frame, Easy Assembly Metal | 7 H x 72 W in | Wayfair

Guarantee your sleep quality with our heavy-duty structure box springs. Crafted from robust metal slats and durable reinforced steel construction that can easily support your mattress, it's a nice mattress foundation. This box spring's sleek design... more

California King Firm 8" Foam Mattress - Alwyn Home 8-Inch Medium Tight top High Density Rolled | 84 H x 72 W 8 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 simple setup, easily fits through narrow... more

California King Firm 10" Foam Mattress - Modway Jenna 10-inch Euro Top Pocket Spring | 80 H x 72 W 10 D in Wayfair MOD-6080-WHI

Enjoy rejuvenating sleep with the Jenna 10” Innerspring Mattress. Jenna features individually wrapped pocket coils that isolate motion between sleeping partners and provide pressure relief and spinal alignment. Responsive to the needs of the side,... more

Millwood Pines 0.68-Inch Heavy Duty Mattress Support Wooden Bunkie Board/Slats Wood in Brown | 0.68 H x 72 W x 83 D in | Wayfair

The standard wooden slats provide an excellent surface foundation for any platform beds, bunks, and daybeds. It adds support to any mattress type and will keep the mattress in good shape thus extending the life of your mattress The wooden slats made... 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

California King Firm 10" Memory Foam Mattress - Signature Design By Ashley 10 Inch Chime 2.0 | 84 H x 72 W D in Wayfair M42551

Stretch out and let the cares of the day fade away. This ultra-plush king mattress is crafted for modern comfort and convenience, with layers including refreshing green tea foam and response memory foam that support and contour to your body. Even... more

California King Medium 10" Hybrid Mattress - Alwyn Home Rohon Sofa Bed Mattress, Polyester | 84 H x 76 W 10 D in Wayfair

Have a comfortable night’s sleep on this 10-inch comfort foam quilted hybrid mattress. Featuring a 1.5-inch quilted soft comfort foam and fiber top layer, 1-inch of wave patterned comfort foam, an 8-inch encased coil base, and a 0.5-inch layer of... more

California King Medium 14" Hybrid Mattress - Alwyn Home Rogofsky Sofa Bed Mattress, Polyester | 84 H x 76 W 14 D in Wayfair

Enjoy a refreshing night’s sleep on this 14-inch gel memory foam quilted hybrid mattress. Featuring a 1.5-inch quilted soft comfort foam and fiber top layer, 2-inches of wave patterned gel memory foam comfort layer, 1.5-inches of supportive transition... more

California King Medium 12" Hybrid Mattress - Alwyn Home Rohando Sofa Bed Mattress, Polyester | 84 H x 72 W 12 D in Wayfair

Enjoy your mornings after sleeping on the 12-inch gel memory foam quilted hybrid mattress. Featuring a 1.5-inch quilted soft comfort foam and fiber top layer, 1.5-inch of wave patterned gel comfort foam, 0.5-inch of supportive transition foam, an... more

Nivo Contemporary Grey Cal King Euro Top Mattress by Furniture of America

Fall into a sound, uninterrupted sleep with the comfort and support with this 13 inch pillow top Cali king mattress from Furniture of America. more

Luxury Gel Memory Foam Mattress in a Box

Experience a restful night's sleep with our 10 Inch Cal King Gel Memory Foam Mattress. This mattress is designed to provide comfort, support, and temperature regulation for a rejuvenating sleep experience. more

California King Medium 8" Memory Foam Mattress - Alwyn Home Morris No Infusions | 84 H x 72 W 8 D in Wayfair 1ACC705F81774726995C63B5F99525C3

Add a sense of comfort to your night with this 8-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. Infused... more