Zinus 12 Inch Foam and Spring Mattress / CertiPUR-US Certified Foams / Mattress-in-a-Box, King - OLB-BNSM-12K

• UPC   841550200133
• General Note: Please allow 24 - 72 hours for your Mattress to regain its full shape. Any memory foam will expand faster in a warmer room. In cold temperature, at delivery, your mattress may take a bit longer to return to full sized from its compressed state.The expansion time of the mattress will vary as per the surrounding. DURABLE COMFORT – When soft, yet durable foam layers combine with steel innersprings, a match made in mattress heaven happens, resulting in this supportive spring mattress with the right hint of conforming softness.TOP QUALITY LAYERS – 1.25 inch durable high-density foam, 4.5 total inches conforming ViscoLatex foam, and a 6 inch base layer of heavy duty steel coils. ideal for back and stomach sleepers and petite to average weight individuals CERTIPUR US CERTIFIED - Highest quality foam is CertiPUR US Certified for durability, performance, and content EXPERTLY PACKAGED - Our technology allows this mattress to be efficiently compressed into one box that’s easily shipped and maneuvered into the bedroom. simply unbox, unroll and this mattress does the rest, expanding to its original shape within 72 hours Worry-free 10 year lid warranty included. twin mattress supports a maximum weight of 250 lbs, while all other sizes can support up to 500 lbs