Sheet stuff is a term used to describe items that are used on a bed, such as sheets, blankets, and pillows. The crossword solution for the term sheet stuff is LINEN, which is a type of fabric made from fibers of the flax plant. LINEN is often used to make bedding items such as sheets, pillowcases, and duvet covers. It is known for its strength and durability, as well as its breathability and absorbency.