Beautyrest Recharge World Class Manorville Luxury Firm Mattress Set, King Beautyrest Pocketed Coil Technology: Hundreds of our pocketed coils provide conforming back support and motion separation for an undisturbed sleep AirCool and Gel Foams: AirCool foam provides support and airflow while a comfort foam layer infused with GelTouch adds additional pressure relief AirCool Memory Foam with Micro GelTouch: AirCool Memory Foam provides pressure relief, freedom of movement and a comfortable sleeping temperature TruTemp Technology: Helps keep you in a comfortable temperature zone by absorbing, storing and releasing excess warmth from the mattress AirCool Design: Includes our ventilated AirCool BeautyEdge Foam Encasement and hi-tech AirCool Mesh Border fabric to help the mattress to breathe