Supra APL Mattress Replacement System, manufactured by Medline is the most economical mattress replacement system Medline offers, and is perfectly suited for home-care, nursing or hospital stays. The Mattress boasts a unique low air-loss ventilated system to help manage moisture, features an adjustable air pump, as well as an easy-to-use weight dial for customizable optimum comfort level. Features: Alternating Pressure, Low Air-Loss, Static Float Cell-On-Cell Design Prevents Bottoming Out Easy-To-Use Weight Dial For Customized Therapy Easy-To-Clean, Waterproof, Quilted Nylon Cover Reduces Shear and Friction Low Pressure Alarm with Audio and Visual Indicators 400 lb Weight Capacity Adjustable Air Pump Specifications: Product Number: MDT24SUPRAAPL Color: Blue Cover Type: Quilted Nylex Latex Free: Yes Length: 13.9 in Material: Nylex Thickness: 10.6 mil Width: 7.7 in