The hybrid mechanism: A mix of both sofa mechanisms, this consists of pulling, folding, or sliding a frame out to convert the sofa into a bed. For example, the bottom on the Write-up Nordby Pep Sofa Bed slides out and much more cushions elevate to create the sofa bed surface. https://landenisese.wizzardsblog.com/30996644/the-ikea-beds-full-diaries