Furniture › Bedroom Furniture › King › 48 x 78 x 55

Alwyn Home Bernadette 4" Metal Box Spring Metal | 4 H x 75.47 W x 78.74 D in | Wayfair CB1EB0867E134C03BCB5E6EEB5DE386E

We like to think of the quick lock metal box spring as the 2.0 version of your traditional mattress foundation. Made sturdier than ever by its substantial steel frame and with its game-changing assembly method, we’ve developed a better way to deliver... more

Zinus Quick Lock Smart 7" Box Spring Metal | 7.48 H x 75.47 W x 78.74 D in | Wayfair WF-QLBS-75K

Enjoy the strong support and convenience of the new 7.5" standard profile quick lock smart box spring by Zinus. Offers the look and functionality of a traditional box spring, but is made from steel for longer-lasting durability. Compact packaging... more

Zinus Quick Lock Smart 7" Box Spring Metal | 7.48 H x 75.47 W x 78.74 D in | Wayfair WF-QLBS-75K

Enjoy the strong support and convenience of the new 7.5" standard profile quick lock smart box spring by Zinus. Offers the look and functionality of a traditional box spring, but is made from steel for longer-lasting durability. Compact packaging... more

Ebern Designs Aarylan 0.68-Inch Standard Vertical Mattress Support Wooden Bunkie Board/Slats Wood in Brown | 0.68 H x 78 W x 78 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

King 5.5" Memory Foam Mattress - Lulu | 80 H x 76 W 5.5 D in Wayfair LULUMATKING

The Lulu BASIC. Our entry level mattress. Full Size 54" x 75"Simplicity at its finest. Using high-end materials at an affordable price. Cooler and sounder sleep on 5.5 inches of memory foam. Maintaining proper spinal alignment while you sleep. We... more

Millwood Pines 0.68-Inch Heavy Duty Mattress Support Wooden Bunkie Board/Slats Wood in Brown | 0.68 H x 76 W x 78 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 Gile 0.68-Inch Heavy Duty Mattress Support Wooden Bunkie Board/Slats w/ Cover Wood in Brown | 0.68 H x 60 W x 78 D in | Wayfair

Features: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... more

Ebern Designs Aaryana 0.68-Inch Vertical Mattress Support Wooden Bunkie Board/Slats w/ Cover Wood in Brown | 0.68 H x 76 W x 78 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 Gile 0.68-Inch Heavy Duty Mattress Support Wooden Bunkie Board/Slats w/ Cover Wood in Brown | 0.68 H x 39 W x 78 D in | Wayfair

Features: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... more

Alwyn Home Tatum 0.68-Inch Heavy Duty Vertical Mattress Support Wooden Bunkie Board/Slats w/ Cover Wood in Brown | 0.68 H x 76 W x 78 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

Ebern Designs Aaryav 0.75-Inch Heavy Duty Vertical Mattress Support en Bunkie Board/Slats w/ Cover in Brown | 0.68 H x 76 W x 78 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 Gile 0.68-Inch Heavy Duty Mattress Support Wooden Bunkie Board/Slats w/ Cover Wood in Brown | 0.68 H x 76 W x 78 D in | Wayfair

Features: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... more

Beautyrest Triton Foundation Wood in Brown | 9 H x 78 W x 72 D in | Wayfair 700810116-9960

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: King, Profile: Standard | Beautyrest Triton Foundation Wood in Brown |... more

Alwyn Home Gile 0.68-Inch Heavy Duty Mattress Support Wooden Bunkie Board/Slats w/ Cover Wood in Brown | 0.68 H x 39 W x 78 D in | Wayfair

Features: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... more

Alwyn Home Dunshee 0.68-Inch Heavy Duty Mattress Support Wooden Bunkie Board/Slats Wood in Brown | 0.68 H x 76 W x 78 D in | Wayfair

The heavy-duty wood bunkie board with slats provides an excellent surface foundation for any platform beds, bunkies, and daybeds. It adds support to any mattress type and will keep the mattress stay in good shape thus extending the life of your... more

Beautyrest Triton Foundation Wood in Brown | 4 H x 78 W x 72 D in | Wayfair 700810116-9860

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: King, Profile: Low | Beautyrest Triton Foundation Wood in Brown | 4 H... more

2024 Beautyrest Black® Foundation | 5.5 H x 76 W x 80 D in | Wayfair 700812179-6060

Specifically designed to work together with your Beautyrest Black® mattress, this Beautyrest Black® foundation offers long-lasting support and reduced motion for a restful night’s sleep Profile: Low Profile (5.5"), Size: King | 2024 Beautyrest Black®... more

Alwyn Home Odum 8" Wood Box Spring Wood in Brown | 8 H x 75.2 W x 78.7 D in | Wayfair 39332ECA1DB64FC29FB579FC8F539860

A sturdy RTA mattress foundation for a restful night's sleep at a value-added price! This box spring foundation technology is designed to extend the life of your mattress while evenly distributing weight, and providing support and stability that... more

Zinus Justina 16" Mattress Foundation Wood/Metal in Brown | 16 H x 75.47 W x 78.74 D in | Wayfair FRBX-Z9DG-K

Supportive, sturdy, and easy on the eyes too, the Justina foundation is your one-and-done solution for convenient mattress support. Featuring a durable steel frame, versatile grey upholstery, and deeply finished solid wood legs, Justina optimally... more

White Noise Wood Box Spring Wood in Brown | 8 H x 48 W x 74 D in | Wayfair 4B4EB77BF02E4D66AA0BA998C68B649D

Cherish the sweetest of your dreams and a peaceful nectar sleep with the wooden box spring. This charming deluxe product has been handcrafted by our team in such a way that it provides underlying support for mattresses. The cheapest, long-lasting plush... more

White Noise Wood Box Spring Wood in Brown | 8 H x 48 W x 74 D in | Wayfair 4B4EB77BF02E4D66AA0BA998C68B649D

Cherish the sweetest of your dreams and a peaceful nectar sleep with the wooden box spring. This charming deluxe product has been handcrafted by our team in such a way that it provides underlying support for mattresses. The cheapest, long-lasting plush... more

White Noise Wood Box Spring Wood in Brown | 8 H x 48 W x 74 D in | Wayfair 7C1C1BE1A6FF470F819653D3962E94B6

Cherish the sweetest of your dreams and a peaceful nectar sleep with the wooden box spring. This charming deluxe product has been handcrafted by our team in such a way that it provides underlying support for mattresses. The cheapest, long-lasting plush... more

Strobel Mattress Durham Support Deck for Pedestal Bed | 85 H x 48 W x 1 D in | Wayfair 9900RWDECDurSSU

Features:Wood decking of 0.4” wafer board goes on top of the pedestal or drawer pedestal and underneath your mattress or waterbed. Allows storage drawer pedestals to be used under any type of mattressHand crafted in USACompatible Flow Type: Pieces... more

King Medium 12" Memory Foam Mattress - Serta Perfect Sleeper Splendid Slumber | 81 H x 78 W 12 D in Wayfair 500088768-1060

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

Twin Medium 12" Gel/Foam Mattress - ESHINE Gel Memory Foam w/ Box Spring | 78.7 H x 59.8 W 12 D in Wayfair EE-MQ12H

EE-MK12H, EE-MK14H, EE-MQ12H, EE-MT12HFeatures:EE-MK12H, EE-MK14H, EE-MQ12H, EE-MT12HCertipur US Certified: high-quality foam is certi pur us certified for durability, performance, and content. EE-MK12H, EE-MK14H, EE-MQ12H, EE-MT12HEE-MK12H, EE-MK14H,... more

Twin Medium 12" Gel/Foam Mattress - ESHINE Gel Memory Foam w/ Box Spring | 78.7 H x 37.5 W 12 D in Wayfair EE-MT12H

EE-MK12H, EE-MK14H, EE-MQ12H, EE-MT12HFeatures:EE-MK12H, EE-MK14H, EE-MQ12H, EE-MT12HCertipur US Certified: high-quality foam is certi pur us certified for durability, performance, and content. EE-MK12H, EE-MK14H, EE-MQ12H, EE-MT12HEE-MK12H, EE-MK14H,... more

King Medium 14" Innerspring Mattress - Serta Perfect Sleeper Sapphire Canyon | 81 H x 78 W 14 D in Wayfair 500102171-1060

Perfect Sleeper Sapphire Canyon 14" Medium mattress is a perfect match for sleepers who want comfort that lasts all night with cooling pressure relief. Sapphire Canyon is an innerspring mattress that's packed with layers to provide you with the sleep... more

King 11" Innerspring Mattress - Serta Azure Bay Plush | 81 H x 78 W 11 D in Wayfair 500704622-1060

There is nothing better than waking up after an entire night of supported and comfortable sleep. That's why we've introduced our Azure Bay 11" Innerspring Plush Tight Top mattress to the world! We've added CoolTwist Gel Foam to promote breathable... more

King 12" Hybrid Mattress - Serta Perfect Sleeper Renewed Relief Plush | 81 H x 78 W 12 D in Wayfair 500300168-1060

A top-of-the-line mattress, the Serta Perfect Sleeper 12" Plush Hybrid Mattress-In-A-Box delivers pressure-relieving comfort and support with a plush feel. Deep Reaction Memory Foam is laid on top of HexCloud Gel Memory Foam for a supportive, cradling... more

Twin Medium 12" Gel/Foam Mattress - ESHINE Gel Memory Foam w/ Box Spring | 78.7 H x 37.5 W 12 D in Wayfair EE-MT12H

EE-MK12H, EE-MK14H, EE-MQ12H, EE-MT12HFeatures:EE-MK12H, EE-MK14H, EE-MQ12H, EE-MT12HCertipur US Certified: high-quality foam is certi pur us certified for durability, performance, and content. EE-MK12H, EE-MK14H, EE-MQ12H, EE-MT12HEE-MK12H, EE-MK14H,... more

King Firm 16" Foam Mattress - Serta Perfect Sleeper Sapphire Canyon Pillow Top | 81 H x 78 W 16 D in Wayfair 500106563-1060

Perfect Sleeper Sapphire Canyon 16" firm pillow top is a perfect match for sleepers who want comfort that lasts all night with cooling pressure relief. Sapphire Canyon is an innerspring mattress that's packed with layers to provide you with the sleep... more

King Firm 16" Foam Mattress - Serta Perfect Sleeper Sapphire Canyon Pillow Top | 81 H x 78 W 16 D in Wayfair 500106563-1060

Perfect Sleeper Sapphire Canyon 16" firm pillow top is a perfect match for sleepers who want comfort that lasts all night with cooling pressure relief. Sapphire Canyon is an innerspring mattress that's packed with layers to provide you with the sleep... more

King 8" Mattress - SereneLife Elevated w/ Built-In Pump-Durable Automatic Electric Inflation Blow Up Air Bed W/Soft, Plush Flocking | 18 H x 55 W 75 D Wayfair

18’’ Full Premium Raised Airbed - Inflatable Full Mattress with Built-in Internal AC Pump and Storage Bag, Upgraded Bed for Home Camping and Travel Features: Great Spare Bed For Out Of Town Guests Made of Sturdy PVC A Comfortable high-quality flocked... more

King 14" Hybrid Mattress - Serta Perfect Sleeper Ultra Plush & Box Spring Set | 81.5 H x 78 W 13.75 D in Wayfair 500162733-9860

The mattress features a luxe, cool-to-the-touch cover with a layer of cooling gel memory foam to help dissipate heat along with an advanced custom coil system that reduces motion transfer and provides support on all four sides of the mattress. Box... more

White Noise Split Wood Box Spring w/ Metal Frame, Special Size Foundation Wood/Metal in Brown | 75" X 48",Low Profile (4") | Wayfair

Cherish the sweetest of your dreams and a peaceful nectorsleep with the Wooden Box Spring. This charming deluxe product has been handcrafted by our team in such a way that it provides underlying support for the mattresses. The cheapest, long lasting... more

White Noise Split Wood Box Spring w/ Metal Frame, Special Size Foundation Wood/Metal in Brown | 75" X 48",Standard Profile (8") | Wayfair

Cherish the sweetest of your dreams and a peaceful nectorsleep with the Wooden Box Spring. This charming deluxe product has been handcrafted by our team in such a way that it provides underlying support for the mattresses. The cheapest, long lasting... more

Queen 9" Waterbed Mattress - Strobel Semi-Waveless 1 Layer Fiber Deep Fill Hard-Side | 9 H x 48 W 84 D in Wayfair 12750SWSS

Features:Water-Mattress Soft WaveFull 20 mil American made vinyl (10% thicker than many)Fiber is thermally bonded for longest life, not resin bondedReinforced cornersStrobel one-piece constructionMattress Type: Hard-sidePrimary Material: FoamUpholstery... more

9" Waterbed Mattress - Strobel Hydro-Support-1200 2-5-2 Layer Fiber Waveless Deep fill Hard-side | 9 H x 48 W 84 D in Wayfair 10200HS1200SS

The Strobel Technologies Waterbed Mattress Hydro-Support 1200 can help in treating back pain. Waterbeds are mostly intended for medical therapies as they can remove the pressure from the spine allowing the spine muscles to be completely relaxed. This... more