A head restraint is provided for a seat for use with a motor vehicle. The head restraint includes a base configured to be attached to the seat, and a main portion configured to be positioned between the base and a head of a seat occupant when the base is attached to the seat and the seat is mounted in the vehicle. The head restraint further includes at least one movement mechanism associated with at least one of the base and the main portion and configured to move at least part of the main portion laterally or upwardly and downwardly relative to the base.