A seat assembly having a seatback and a head restraint is provided. The seat assembly includes a support member extending between the head restraint and the seatback. The support member is configured to attach the head restraint to the seatback, and may extend downward into the seatback. The support member separates the head restraint into a forward portion and a rearward portion. A receptacle cavity is defined within the rearward portion of the head restraint. The receptacle cavity is configured to receive one or more articles.