Abstract: A non-inflating flexible warm air distribution manifold that attaches to the patient side of patient gown. This manifold is configured to receive warmed air the of the warm-air receiving orifice and to distribute the warm air over a wide area of the patient side of the gown. By one approach the manifold comprises a flexible baffle. This baffle can be disposed on the patient side of the gown office proximal (in fact, opposite) the warm-air receiving orifice. The baffle has two or more sides that are secured to the gown and two or more sides that are not secured to the gown. Warm air entering the gown through the warm-air receiving orifice can readily pass through the sides that are not secured to the gown while the warm air entering the gown is largely impeded from passing through the sides that are secured to the gown.