Mattresses and Accessories - Drive, Gravity 7 Long Term Care Pressure Redistribution Mattress, Elevated Perimeter, 84" : The Gravity 7 Long Term Care Pressure Redistribution Mattress by Drive Medical uses a multi-layered, high density foam to provide optimal pressure redistribution for individuals in long term care facilities. The top layer of foam is high resilient and die-cut, which provides comfort and proper pressure redistribution. The ultra-soft heel section is uniquely designed to provide extremely low skin interface pressure, preventing pressure ulcers. The mattress cover is a 2-way stretch, water resistant, vapor permeable nylon ensuring users comfort and hygiene. The cover provides a low moisture transmission rate (MVT) which keeps the patient cool, dry and comfortable. The 3" elevated perimeter prevents patient falls and the Cut Out sections facilitates easy transfers in and our of bed.