The blanket has an inner layer (14), which is designed permeable for hot air, and faces the body to be heated using the heating blanket. An interlayer or intermediate layer (16) is provided for passing, conducting, flowing through and/or for transporting the hot air. A coating is applied on the intermediate layer, where coating consists of polyurethane. Polyurethane foam is applied on a polyurethane layer, which exhibits a thickness of 1 to 5 millimeters.
