Wister Air therapy Mattress is ideal for prevention and treatment of patients at low risk of pressure ulcers. This light weight and compact alternating pressure pad is composed of 2.5”-high bubble cells, and it is used as an alternative to heavier products such as gel overlay mattresses. The system is great for short term usage and easy to install. With a pressure adjustable pump and extension flaps on top and bottom sides of the bubble pad to prevent the pad from sliding, Domus 1 is designed to be a great transition mattress for homecare.