A vehicle seat and head restraint are disclosed with a head restraint that is mounted to a pair of rods that are fixed relative to the vehicle seat. The head restraint is translatable along the rods and includes a locking mechanism for locking the head restraint at a plurality of locations along the rods. In one embodiment, the rods are mounted to an armature of a restraint mechanism for actuating the head restraint in response to an impact condition.