The hybrid system: A mix of the two sofa mechanisms, this requires pulling, folding, or sliding a frame out to transform the sofa into a bed. As an example, the bottom from the Write-up Nordby Pep Sofa Bed slides out and more cushions carry to create the sofa mattress area. https://bestsinglescruise36899.blogunok.com/31283439/5-simple-statements-about-x-rocker-beds-explained