COOL, SUPPORTIVE, LUXURIOUS – With the unmatched support of steel pocket springs and conforming softness of Zinus foams, this cooling gel-infused hybrid is the one you’ll depend on for cool, luxurious, and pressure-relieving sleep UNDISTURBED COMFORT – Made with CertiPUR-US certified gel memory foam and Zinus Comfort Foam, plus a base layer of pocketed springs for enveloping support that alleviates pressure points, eases sore joints, and isolates motion from a sleeping partner SLEEP COOLER AND CALMER – Cooling gel-infused memory foam helps circulate air, dispelling excess heat so you can maintain an optimal sleeping temperature without overheating EXPERTLY PACKAGED – This mattress is 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 limited warranty included; twin mattress supports a maximum weight of 250 lbs, while all other sizes can support up to 500 lbs