Abstract: An upper-half-body auxiliary bedsheet includes: a rectangular covering section for covering the front surface of an upper portion of a bed; left and right folding-back sections respectively extending from left and right sides of the covering section, each section having a width greater than the thickness of the bed; a head section extending from the head side of the covering section, having a length greater than the thickness of the bed; and left and right connecting members for respectively connecting a left and right end at a boundary between the covering section and the head section, to a predetermined left and right portion at a distal end side of the head section. The bedsheet includes side portions without a bag shape, thereby facilitating the partial putting on and removing of the bedsheet. Both side surfaces of the bed are covered by the folding-back sections, preventing the bed from becoming dirty.