Abstract: A method for converting a patient bed or chair to a patient manipulating device by selecting a kit including a subframe having a central hinge plate carrying a pair of left and right articulated wing support devices for complementary conformity to the underlying support surface. An opening is cut in the back support of the bed and chair, the subframe installed thereover and a pair of left and right actuators inserted behind such support surface and coupled with such wing devices to selectively raise the respective wings upwardly relative to the sub-frame and patient support surface.