The hybrid mechanism: A combination of the two sofa mechanisms, this includes pulling, folding, or sliding a frame out to convert the sofa into a mattress. For instance, the bottom on the Report Nordby Pep Sofa Mattress slides out and a lot more cushions lift to create the sofa bed https://kamerondpcrh.tkzblog.com/30901599/everything-about-laptop-stand-for-beds