bedsheet

/ˈbɛdʃiːt/noun

A large piece of fabric made to cover a bed or lie under a sleeper.

Example sentence

“She changed the bedsheets before the guests arrived.”

In everyday speech people just say "sheets", almost always plural: change the sheets, clean sheets.

Related words

duvetA soft, flat bag filled with feathers or other warm material, usually kept in a washable cover and used on a bed in place of blankets.quiltA warm bed cover made of two layers of cloth with soft padding stitched between them, often in a decorative pattern.valanceA short piece of drapery hung across the top of a window.blindsA window covering, made of fabric or thin slats, that can be adjusted to let light in or shut it out.drapesLong, heavy curtains that cover a window.rugA piece of thick fabric that covers part of a floor.