Patent ID: 7036163

Claim:
A system, comprising: a sheet of pliable, washable, bedding-quality fabric material configured to fit over a mattress and cover the entire upper surface thereof, the sheet being greater in size that the upper surface of the mattress so that the sheet overhangs the edges of the mattress and the sheet can be tucked underneath the mattress, the portion of the sheet that in use covers the upper surface and a first portion of the sheet that overhangs one of the edges of the mattress consist of upper and lower fabric layers; and a manifold and a plurality of air flow tubes formed in the sheet, the manifold is formed between the upper and lower fabric layers of the first portion of the sheet so that the manifold overhangs the mattress edge, and the air flow tubes being formed by the upper and lower fabric layers with said air flow tubes in flow communication with said manifold, and the upper fabric layer that forms said air flow tubes forms an upper surface of the sheet that is constructed to release air at a controlled rate therethrough; and an air delivery unit connectable to the sheet to deliver air to said manifold.