Different folded sofa bed mechanisms have different dimensions requirements for matress and wood frame cavity,therefore different styles need to use right 2 fold sofa bed mechanism or 3 fold sofa bed mechanism as well as revolving Italian openning sofa bed mechanism etc.
Read MoreNeeds separated mattress or not?If yes then it is a fold sofa sleeper mechanism.If not then it is pull out pop up sofa bed mechanism or sliding sofa bed mechanism for choice.Also you can chose electric adjustable sofa bed mechanism for high end leather sofa design.
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