Patent ID: 7254853

Claim:
An air mattress, comprising: a plurality of mattress bodies; wherein each mattress body is elastically contracted or expanded based on a change of air pressure injected into an interior of the mattress body and comprises an upper raw material member and a lower raw material member, the upper raw material member has a coating layer at an upper surface of the mattress body and the lower raw material member is spaced from and installed below a lower side of the upper raw material member and has a coating layer at a lower surface of the mattress body, a plurality of fiber threads vertically connect the upper and lower raw material members; a coated side raw material which is fixedly engaged to seal a surrounding portion between the upper and lower raw material members; said coating layer is one coating selected among polyvinyl chloride, polyethylene, and polyurethane coatings; said upper and lower raw material members are formed of a non-woven fabric, respectively; and an air injection valve engaged at one side of the side raw material, wherein said plurality of said mattress bodies are stacked in a multiple-layer structure, each upper raw material member of one said mattress body being adjacent to the lower raw material member of another adjacent and higher said mattress body, if any, a side cover fixedly engaged to surround the entire surrounding portions of the side portions of the stacked mattress bodies.