Convertible Fold-Out Single Sofa Bed,Gray,the Left Part of the Complete Product. W244P28925618 sections adjustable: this sofa can be adjusted to 18 different positions. One position is sitting and the other is lying. You can adjust the position at will. The folding mattress sofa can not only be a sofa, but also a bed. Compressed packaging, small packaging size, reduces final shipping costs Full sitting sensation, enlarged size, multifunctional and versatile use in multiple scenarios, adjustable back to meet various relaxation postures