Gewnee Folding Futon Sofa Bed Convertible Sleeper Sofa with Storage& Adjustable Backrest,Gray

The ergonomic sofa bed is constructed of 3-position angle adjustments. The 110-degree angle provides your back a reclined position for daily comfort. The 140-degree angle puts the least stress on the spine. The sofa bed extends all the way to a 180-degree flat angle, which makes for a great night of sleep. To adjust the angles, fold the backrest forward first to unlock the degree setting, then unfold it backwards to set it at the desired reclining position. The two detachable armrests on both sides will help you convert your sofa into a relaxed bed.