An automatically adjustable futon frame includes a back and a seat pivotally joined to one another for folding about a transverse axis extending between opposite sides of the frame. A single motor is mounted on the seat and includes a transversely extending drive shaft on which a pair of pinions are mounted. The pinions are arranged to mate with a pair of toothed racks fixed to the opposite sides of the frame. The drive shaft may be arranged to extend through opposite side members of the seat, and ends of the drive shaft may be received in channels in the sides of the frame. A pair of link arms are provided on each side of the frame to pivotally connect the back to the sides of the frame. The motor is operable to adjust the frame between a sofa position and a bed position.
