From German - English Ding/FreeDict dictionary ver. 1.9-fd1:
Duvet /dˈuːvət/ <neut, n, sg>
[Schw.] [textil.] duvet <n> [Br.] , continental quilt <n> [Br.] , comforter <n> [Am.] , plumeau <n> [rare]
Synonyms: Steppdecke, Steppbett, Deckbett, Oberbett, Federbett, Plumeau, Tuchent
see: Steppdecken, Steppbetten, Deckbetten, Oberbetten, Federbetten, Plumeaues, Tuchenten, Duvets