Abstract: There is provided an inflatable mattress and coverlet used to reduce and treat decubitus ulcers. The mattress is an air inflatable mattress and is particularly adapted for use on a bed in a hospital, nursing home, health care facility or the like. The air inflatable mattress has a series of apertures on the top allowing small amounts of air to pass through to the underside of the coverlet. According to one aspect of the invention the coverlet is placed over the top of air inflatable mattress in the central portion thereof between the head of the bed and the foot of the bed. The coverlet is of sufficient length to extend under the weight bearing portions of the patient. The coverlet has as a first layer a moisture wicking fabric, such as a polyester, and on one side of the moisture wicking fabric there is attached a microporous polymeric member which allows air from the mattress to pass through the coverlet to the patient. Adjacent the polymeric member is another layer comprising a spacer fabric.