The deluxe Bed-Plus features an advanced inner-spring mattress, a raising head "Back Up" mechanism, decorative stitching, soft front panel, orthopedic support, and a super easy lifting mechanism to access the storage bin underneath. Sizes available: (3.9"x6.6"),(4.3"x6.6"),(4.6"x6.6"),(4.9"x6.6")