Abstract: A sheet that includes an upper portion, a lower portion, four side portions and at least one strap is disclosed. The four side portions correspond to a first pair of sides and a second pair of sides. The first pair of sides corresponds to a top side and a bottom side opposite of each other. The second pair of sides corresponds to a left side and a right side opposite of each other. The upper portion is opposite the lower portion. The lower portion has an opening. At least one strap is attached to a point in the lower portion and an opposite point in the lower portion and extends across the opening in lower portion. At least one strap has a single indicator. The indicator indicates the position and/or size of the sheet.