How to Choose a Sectional Sleeper Sofa A sectional 3-In-1 Convertible Sleeper Sofa: Pull Out Couch sofa blends the comfort of a couch with a fold-out mattress. This multifunctional piece is ideal for homes with small spaces or guests who are frequently in the house. This grey microfiber pick comes with a queen-sized innerspring bed and enough room to comfortably seat three or four persons. It also has an under-chaise storage area to store blankets and throw pillows. Size and Configuration Think about the size of your space and the number of guests who will be using the sectional sleeper sofa queen. This will help you select the correct mattress size, which ranges from twin to king. The frame of a sectional sofa bed may make a significant difference. To ensure durability it should be constructed from furniture-grade plywood or kiln dried woods. Avoid frames made of metal as they may rust and are not strong enough to support a mattress. The comfort level and appearance of the sofa are crucial factors.