The hybrid mechanism: A combination of both equally sofa mechanisms, this requires pulling, folding, or sliding a frame out to convert the sofa into a bed. One example is, the bottom of the Post Nordby Pep Sofa Mattress slides out plus more cushions raise to create the sofa mattress surface https://new-love-boat-show68766.blogsmine.com/31502570/everything-about-laptop-stand-for-beds