The hybrid mechanism: A mix of both sofa mechanisms, this involves pulling, folding, or sliding a frame out to convert the sofa into a bed. Such as, the bottom with the Post Nordby Pep Sofa Mattress slides out and a lot more cushions lift to create the sofa mattress surface https://poodledogtoys97305.bloggadores.com/30489542/details-fiction-and-raised-beds-legs