Tuft & Needle Kin Firm 8” King Adaptive Foam Mattress in a Box Bundle King Mattress Foundation Box Spring & Metal Base Bed Frame – Cooling Pressure Relief and Supportive

Get better sleep for less with the Amazon-exclusive Tuft & Needle Kin 8" Firm Foam Mattress, designed with responsive T&N Adaptive® foam that delivers cooling comfort, pressure relief, and supportive bounce-back—so you sleep on the mattress, not in it. A durable foam core provides long-lasting support, while GREENGUARD Gold and CertiPUR-US® certified foams promote healthier indoor air quality. This complete sleep setup includes a 7" box foundation and sturdy metal bed frame, both designed for quick, tool-less assembly. The foundation offers reliable support and added height with a durable woven fabric cover, while the powder-coated steel frame keeps the box spring securely in place, supports headboard attachment (headboard not included), and provides 6" of under-bed storage. Together, they create a simple, supportive, and space-efficient bed system built for everyday comfort.

• Complete Bed Bundle: Includes our Kin 8” Firm King Adaptive Foam Mattress in a Box paired with a Tuft & Needle King Mattress Foundation Box Spring and a King Metal Base Bed Frame. This bundle is designed to help you have a supportive sleep.
• Cool, Supportive Comfort for Restful Sleep: Open-celled T&N Adaptive foam enhances breathability, bounce-back support, and pressure relief—providing a cooler, more supportive feel than traditional memory foam or latex.
• Versatile, Responsibly Crafted Design: This firm, foam mattress is ideal for kids, guests, or everyday sleep and arrives compressed in a mattress-in-a-box, assembled in the USA with fiberglass-free, GREENGUARD Gold–screened, and CertiPUR-US certified materials for durable, worry-free comfort.
• Easy-to-Assemble, Supportive Foundation: This 7" box foundation adds the perfect amount of height and support, features a durable stone-grey woven cover, assembles in minutes with no tools, and is compatible with most mattresses and bed frames.
• Sturdy, Easy-to-Assemble Metal Bed Frame: Built from powder-coated black steel with side panels to keep your box spring in place, this tool-less metal base assembles in minutes, offers 6" of under-bed storage clearance, includes headboard attachment compatibility, and pairs perfectly with the Tuft & Needle Box Foundation.