Abstract: A headrest includes a cushion attached to the front of a rigid back. A pair of arms slidably extend from the sides of the rigid back. The ends of the arms are pivotable to an orthogonal portion for clamping to a seatback. The hook portion of a hook-and-loop fastener is attached to the inner side of each end of the arm for grabbing the looped fabric on the seatback. A pair of keyhole-shaped sockets are arranged on opposite ends of the rigid back. An arm is inserted into one of the sockets, and a side bolster is pivotally attached to the arm. The cushion supports a head in a neutral position without requiring the user to lean back, and the side bolster restrains the head from falling to one side. The angle of the side bolster is adjustable for conforming to a leaning head. In a second embodiment, the headrest includes a cushion removably positioned in a recess on a housing. A cylindrical rod extending from a side bolster is inserted into one of a plurality of holes arranged on opposite ends of the housing.