The hybrid system: A combination of each sofa mechanisms, this consists of pulling, folding, or sliding a frame out to convert the sofa into a bed. One example is, the bottom of your Posting Nordby Pep Sofa Bed slides out and more cushions elevate to create the sofa bed surface. https://shaneytlcs.howeweb.com/31622099/the-basic-principles-of-canopy-for-beds