Simmons BeautySleep Mattresses have everything you need for a better night's sleep. The Keyes Peak Luxury Firm Pillowtop features Surface Cool fiber designed to help move heat and mositure away from the surface of the mattress to help maintain an ideal sleeping temperature. An additional layer of AirCool Foam helps provide airflow through the mattress. Gel Touch foam provides exceptional conformability and soothing comfort. The Keyes Peak is also surrounded by a supportive foam edge encasement system that maximizes the mattress's sleeping surface.