The hybrid mechanism: A mix of each sofa mechanisms, this consists of pulling, folding, or sliding a frame out to transform the sofa into a bed. Such as, the bottom from the Post Nordby Pep Sofa Mattress slides out and much more cushions elevate to create the sofa bed area. https://cristianegpuw.blogsidea.com/37313687/the-2-minute-rule-for-tool-box-for-truck-beds