A flat linen sheet for a queen size bed.
Bedsheets serve to protect the mattress from stains and to increase the comfort of its occupants. There are two kinds of bedsheets: fitted and flat. Flat sheets are a simple, flat sheet of cloth with no strings attached. To secure them on the mattress, they are folded and tucked in a special manner, known as "hospital corners." Flat sheets are commonly used to cover the occupants with the blankets placed over top, keeping the occupants warm and snug.
Commonly used in hotels, hospitals, and military barracks.