A bed elevating apparatus is provided which includes a mechanism for elevating a longitudinal side of a bed while the other side remains in place and acts as a pivot. The act of alternating the side of the bed that is raised shifts the pressure between the person and the bed and thus helps to reduce or prevent bedsores. The bed elevating apparatus can be used with preexisting hospital or nursing home beds. The apparatus is placed between the bed frame and the lower legs portion of the bed such that the legs of the bed remain on the floor and only the bed frame is longitudinally raised.