Featuring our T&N Adaptive® Foam, the Tuft & Needle Signature Mattress is firm and ideal for back and stomach sleepers. Made with two layers of high quality, open-cell foam designed to help your body stay cool while you sleep. The top 3" T&N Adaptive® Foam layer delivers body contouring with bounce-back support and helps prevent deep body impressions. The mattress is wrapped in a plush, breathable cover that is soft to the touch. The Tuft & Needle Signature Mattress is designed to be compatible with most box springs, frames, bunk beds, and foundations, and is backed by a 10-year limited warranty. 6.5" of foundational support foam helps prevent sinking. Cover fabric composed of blend of soft fibers and constructed to have breathability. 3" of T&N Adaptive® Foam technology delivers body contouring with bounce-back support and helps prevent deep body impressions. Open-cell cooling technology allows for more air circulation within the mattress, so you sleep cooler and more comfortably. We designed our mattress to be compatible and complementary with most frames and foundations. Greenguard Gold Certified CertiPUR-US® Certified. Cover fabric composed of blend of soft fibers and constructed to have breathability  Mattress Top Type: Tight Top Mattress Type: Mattress In A Box, Memory Foam Included: 1 Mattress(es) Features: Cooling Layer, Cushioning Layer, Mattress In A Box, Full Support, Foam Layer Additional Information: Suitable for Adjustable Bed Frames, Eliminates Motion Transfer, Relieves Pressure Points, Conforms To Body Manufacturer Warranty: 10 Year Limited Bed Size: Twin Measurements: 74.5 Length/Inches, 38 Width/Inches, 9.5 Height/Inches Maximum Weight Limit: 1000 Lbs Base Material: 60% Foam, 40% Polyurethane Comfort Type: Firm Care: Spot Clean Certifications And Listings: Certipur-Us Certified Country of Origin: Made in US Mattress arrives compressed in a box and then regains its size and shape after opening.