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A head and restraint assembly for a motor vehicle seat having a seat back includes a support member that is removably securable to the seat back. A body portion including a foam cushion is disposed adjacent the support member. A pivot tube is fixedly secured to the support member. The pivot tube def

A head and restraint assembly for a motor vehicle seat having a seat back includes a support member that is removably securable to the seat back. A body portion including a foam cushion is disposed adjacent the support member. A pivot tube is fixedly secured to the support member. The pivot tube defines a slot cut through the pivot tube. A spring is fixedly secured to the pivot tube and extends through a portion of the pivot tube. The head restraint assembly also includes a pivot rod that is disposed within the pivot tube. The pivot rod includes a guide pin that extends out of the pivot rod and is received by the slot. The pivot rod is fixedly secured to the body portion such that rotation of the pivot rod with respect to the pivot tube pivots the body portion with respect to the support member to move the body portion between a use and a tilted position.

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What is claimed: 1. A head restraint assembly for a motor vehicle seat having a seat back, said head restraint assembly comprising: a support member removably securable to the seat back; a body portion including a foam cushion operatively coupled to said support member for pivotal movement relative

What is claimed: 1. A head restraint assembly for a motor vehicle seat having a seat back, said head restraint assembly comprising: a support member removably securable to the seat back; a body portion including a foam cushion operatively coupled to said support member for pivotal movement relative to said support member between a generally upright use position and a tilted position; a pivot tube fixedly secured to said support member, said pivot tube defining a pivot tube slot cut through said pivot tube; a helical spring fixedly secured to said pivot tube and extending through a portion of said pivot tube; and a pivot rod disposed within said pivot tube, said pivot rod including a guide pin extending out of said pivot rod and received by said pivot tube slot, said pivot rod fixedly secured to said body portion such that rotation of said pivot rod with respect to said pivot tube pivots said body portion with respect to said support member to move said body portion between said use position and said tilted position; wherein said pivot tube slot includes a primary segment and a secondary segment parallel to and spaced apart from said primary segment for providing lateral movement of said body portion relative to said support member to retain said body portion in each of said use and tilted positions. 2. A head restraint as set forth in claim 1 wherein said pivot tube slot further includes a cross slot segment perpendicular to said primary and secondary segments, said cross slot segment defining a segment of said pivot slot connecting said primary segment to said secondary segment for guiding said guide pins therebetween and providing said pivotal movement of said body portion relative to said support member. 3. A head restraint assembly as set forth in claim 2 wherein said primary, secondary and cross slot segments form said pivot tube slot in a J-shape. 4. A head restraint assembly as set forth in claim 3 wherein said pivot tube includes a second pivot tube slot cut therethrough and spaced apart from said pivot tube slot. 5. A head restraint assembly as set forth in claim 4 wherein said second pivot tube slot cuts through said pivot tube in a configuration identical to said J-shape of said pivot tube slot. 6. A head restraint assembly as set forth in claim 5 wherein said pivot rod includes a second guide pin positioned to extend through said second pivot tube slot. 7. A head restraint assembly as set forth in claim 6 wherein said pivot rod includes a spring end abutting said helical spring. 8. A head restraint assembly as set forth in claim 7 wherein said body portion includes an internal cavity to allow said body portion to pivot with respect to said support member. 9. A head restraint assembly as set forth in claim 8 wherein said support member includes a vertical post having a distal end received by the seat back. 10. A head restraint assembly as set forth in claim 9 wherein said support member further includes a cross bar extending through a portion of said body portion.