This upgraded Posturepedic® spring mattress features higher quality coils and an added layer of memory foam. The reinforced center third delivers even more comfort and targeted support, and a Duraflex™ coil edge increases durability. The soft knit cover is treated with Moistureprotect™ to help keep you cool, and surface-guard technology™ to keep the mattress protected. Mattress Top Type: Tight Top Mattress Type: Innerspring Included: 1 Mattress(es) Features: Cooling, Non-Toxic, Antimicrobial, Wrapped Coils, Cushioning Layer, Cooling Layer, Foam Layer, Adjustable Base Compatible Additional Information: Suitable for Adjustable Bed Frames Coil Count: 601 Coils Manufacturer Warranty: 10 Year Limited Bed Size: Twin Measurements: 39 Width/Inches, 11.5 Height/Inches, 75 Length/Inches Maximum Weight Limit: 500 Lbs Base Material: 100% Polyurethane Comfort Type: Medium Care: Spot Clean Certifications And Listings: Cpsc - 16 Cfr 1632 Compliant, Cpsc - 16 Cfr 1633 Compliant, Certipur-Us Certified Country of Origin: Made in US Includes mattress only. Mattress plus box spring option also available.  This mattress meets the requirements of 16CFR Part 1632 (federal flammability (open flame) standard for mattresses and mattress pads This mattress meets the requirements of 16CFR Part 1633 (federal flammability (open flame) standard for mattress sets) when used with foundation