‘被套’ (bèi tào) literally means ‘bedding cover’ — ‘被’ (bèi) refers to a quilt or duvet, and ‘套’ (tào) means ‘cover’ or ‘sheath’. Together, they form a compound noun meaning ‘duvet cover’, the removable fabric case that encases a quilt or comforter. It’s an essential household item in Chinese homes, commonly made of cotton, polyester, or silk, and often matched with pillowcases and sheets as part of a bedding set.

Duvet covers are typically secured with buttons, zippers, or envelope-style flaps, and are washed much more frequently than the duvet itself. In daily life, people talk about buying, washing, changing, or ironing 被套 — especially during seasonal transitions or spring cleaning. Unlike Western English, which distinguishes ‘duvet cover’ from ‘comforter cover’, Chinese uses 被套 uniformly for any quilt-sized cover, regardless of fill type.