The hybrid system: A combination of both of those sofa mechanisms, this entails pulling, folding, or sliding a frame out to transform the sofa into a mattress. For example, the bottom on the Write-up Nordby Pep Sofa Bed slides out and more cushions lift to create the sofa bed area. https://mylesxrtqu.ja-blog.com/31077536/not-known-details-about-king-beds-with-upholstered-headboards