Abstract: A dual-aspect headrest especially suitable for use on a vehicle having a seatback for supporting a user of the vehicle, which headrest has (a) a support body having (i) a front face and (ii) a rear face having an anatomical cavity therein for supporting the head of a user of the vehicle, the support body having in an tipper edge thereof a nondeformable neck support having the shape of a semicircle and having an inner part, the neck support being open toward the rear face, and intersecting the anatomical cavity, and having a rigid inner core incorporated in the internal structure of the body, and a spongy material covering the core; (b) pivoting means pivotally connected to the body for pivoting the support body around a horizontal axis and allowing the body to be flipped over the seatback between a first position at which the front face faces the head of a user and a second position at which the rear face faces the head of a user, so that the anatomical cavity and the neck support are positioned to receive, r