A backrest system for use in an automobile storage space includes a back rest member with a front surface, a back surface and a channel coupled to the back surface. The channel extends along a longitudinal axis of the backrest member and includes a first open end and a second open end opposite from the first open end. A first extension member is positionable in the channel and is movable within the channel with respect to the first open end. A second extension member is positionable in the channel and is movable with respect to the second open end. A first coupling member and a second coupling member are positionable on opposite sides of an automobile storage space so as to provide a coupling location for the first extension and the second extension to secure the backrest system in an automobile storage space.