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. As an example, the bottom in the Write-up Nordby Pep Sofa Bed slides out and much more cushions raise to create the sofa mattress https://kingdomu197aju1.angelinsblog.com/30455917/the-all-size-beds-diaries