Abstract: A portable headrest for use in conjunction with the seats of public transportation vehicles. The headrest comprises a pair of padded supports which are secured to a chair back by means of a belt or a pair of hangers. The pair of supports are spaced apart to bracket the user's head and, in combination with the chair back, provide support for the user's head on three sides. The height of the headrest on the chair back is adjustable as is its position relative to the sides of the chair back. Each of the supports are also independently movable to adjust the spacing of the pads relative to each other. The unit is compact, portable and easily packed in a briefcase or suitcase.