Abstract: Frequently there is a need to have a bed extended so as to provide for additional sleeping space. Typically a horizontal extension is provided that requires a larger floor space. Alternatively double-decker beds are used but these are cumbersome and less than attractive for every-day use. A bed comprised of two frames each having a mattress where the top frame lays over the bottom frame during normal usage is provided. When additional sleeping space is required the upper frame is raised vertically over the lower frame, creating a double-decker bed.