Convenience : Duvet Cover is designed as a removable cover ( features a hidden button or zipper closure ) for your comforter( sometimes referred to as a Duvet ), analogous to a pillow case and pillow. You can use your comforter without a top bed sheet ( flat sheet), as the duvet cover can readily be removed and washable as often as the bottom sheet, then you don"t need to clean your comforter( or duvet), which can be experience and difficult to clean. Care Instruction : Machine wash with cold water; Do not bleach; Tumble dry, low heat; Iron, Medium; Do not dry-clean