What is the Difference Between a Duvet & a Duvet Cover?
A duvet is soft quilt traditionally filled with the down from an eider duck. A duvet cover is a washable fabric covering that encases a duvet and serves the same purpose as a pillowcase for a pillow. In American English usage, the term “duvet” may refer to both the duvet and its cover to distinguish it from a coverless comforter.