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. 11-INCH HYBRID MEMORY FOAM MATTRESS—Our original legendary TEMPUR material now combined with premium spring coils for the ultimate in relaxation.SPRING COILS & MEMORY FOAM HYBRID—All the reinforcement of a traditional innerspring mattress with the conforming comfort of multiple foam layers COOL-TO-TOUCH COVER—Premium knit technology offers a superior cool-to-touch feel to keep you comfortable