The hybrid system: A mix of both sofa mechanisms, this includes pulling, folding, or sliding a frame out to convert the sofa into a bed. One example is, the bottom in the Posting Nordby Pep Sofa Bed slides out and much more cushions raise to create the sofa bed surface https://finnbwmds.newbigblog.com/37065043/the-all-size-beds-diaries