Quality, convenience and comfort. The hallmarks of Corsicana's SleepInc 8"" Support and Comfort Medium Firm Memory Foam Mattress. Delivered in a box straight to your door, this mattress delivers a conforming yet supportive feel through SupportSense Comfort Foam. A layer of CoolingGel Visco Memory Foam helps to create a cool surface, ideal in allowing you to fall asleep quicker and stay asleep longer.