Optimum by Sealy Posturepedic is designed to provide the optimum temperature, comfort and support you deserve from a proactive conforming memory foam mattress. Optimum is 12 times more effective than standard memory foam or other gel memory foam mattresses. OptiCool gel memory foam is fused with Outlast, the most effective material for removing excess heat during the night. OptiSense is a unique memory foam that progressively responds to your body’s position, providing optimum conformance and comfort. Sealy’s OptiCore is an engineered support system using a unique design of extracted foams including a reinforced edge design for superior support. Fall asleep faster. Stay asleep longer.