Abstract: A turning air mattress serving to facilitate the therapeutic benefits of turning a bed ridden patient includes a combination of elongated transverse and longitudinal air cells disposed on a base and encompassed by a cell liner. The air cells are attached to a plurality of cell manifolds in communication with a control system. A top cover covering the air cells is attached to the base, and a fleece and top sheet are fittedly retained over the air cells.The control system having a microprocessor monitors the pressure within the air cells, along with overall system functions. The control system also enables a patient to be rotated from side to side, and leveled after being turned, in a smooth transition from a level position to a turned position, or from a turned position to a level position, while substantially maintaining spinal alignment.