The hybrid system: A combination of both of those sofa mechanisms, this includes pulling, folding, or sliding a frame out to convert the sofa into a bed. Such as, the bottom with the Posting Nordby Pep Sofa Mattress slides out plus more cushions lift to create the sofa bed area. https://erickaxpjf.ttblogs.com/10625760/getting-my-costco-bunk-beds-to-work