The hybrid system: A mix of the two sofa mechanisms, this includes pulling, folding, or sliding a frame out to convert the sofa into a bed. Such as, the bottom on the Posting Nordby Pep Sofa Mattress slides out and much more cushions elevate to create the sofa bed surface. https://charlievpcqb.ka-blogs.com/84406509/the-twin-sleeper-chair-beds-diaries