US Patent 7452028 Modular comfort assembly for occupant support

A modular comfort assembly is disclosed. The modular comfort assembly is adapted for installation within an occupant support. The occupant support includes a surface, which has a recess therein. The modular comfort assembly includes a ventilation diffuser allowing for flow of air through the diffuser. The diffuser has an outer edge sized to extend over and cover a perimeter of the recess. The modular comfort assembly also has a heating element adapted for placement on a surface of the diffuser.