The hybrid mechanism: A combination of both sofa mechanisms, this consists of pulling, folding, or sliding a frame out to convert the sofa into a mattress. For instance, the bottom in the Short article Nordby Pep Sofa Mattress slides out and much more cushions raise to create the sofa mattress https://chancelapcq.nizarblog.com/31185768/5-simple-statements-about-x-rocker-beds-explained