The present inventions relate to a mobility and comfort auxiliary bed apparatus, and in particular to a modular and free-standing apparatus that is customizable with many components. In one embodiment, two spaced apart and parallel frame bars are provided, each with opposed vertical risers and a longitudinal rail that is positionable over a bed. An overhead grip such as a trapeze bar may be movably supported by the frame bars. A balance pole may be provided and be adjustably connected to both frame bars laterally and longitudinally. Assist rails and night stands may be further provided, and may be supported by one or more centrally located longitudinal supports underneath the bed. The present invention can be fixed to the bed and may be adjusted in width, length and mattress height to accommodate many components.