Bed Mattress Cover Material Vapor Permeable Dimensions 84 X 35 X 7 Inch Material Air Cells Type Low Air Loss with Alternating Pressure UNSPSC Code 42191810 Weight Capacity 400 lbs. Protocolí´s proprietary air delivery cover design supplies a gentle flow of air directly to the underside of its highly vapor permeable coverlet, carrying away excess moisture vapor to help protect vulnerable skin With control unit