The AtmosAir T-series Mattress Replacement System (MRS) offers superior patient/resident comfort and enables pressure redistribution for the prevention or treatment of pressure ulcers. It has been designed by ArjoHuntleigh for use specifically with the Hill-Rom TotalCare bed frame. It is unique in that it is the only mattress for use with the TotalCare bed that can use the patented Self-Adjusting Technology. This reacts to altitude and temperature, automatically reacting to the patient's body movement and adjusting the internal air pressure. It has nine zones of horizontal pressure redistribution which provide continuous and advanced pressure relief under the seat, legs and shoulders.