Utilizing four different types of premium memory foams, the ultra-plush Secluded Oaks mattress's super pillowtop design places cutting edge body-conforming comfort and support right at the sleep surface. EverCool GFx memory foam uses heat-conducting graphene material to whisk away excess body heat more efficiently, while Cool Action gel memory foam pulls heat away from your body so that you stay cool and comfortable. Meanwhile, PillowSoft foam and Support foam contour to your body's every curve, supporting your body with cradling comfort. Underneath these innovative foam layers, Custom Support Individual Advantage carbon steel coils deliver the restorative support your body needs to wake feeling refreshed, flexing independently of each other for a customized feel. The Total Edge foam encasement allows you to roll all the way to the mattress edge with the same support and comfort you'll find in the center of the mattress. 10 Year Warranty.