Duvet covers commonly use button or zipper closures. Shams often use envelope-style (inner) closures or end closures. Some comforter sets list no closure.
Fabric weights range from lightweight to midweight. Some items are described as year-round or all-season, while others are promoted as lightweight for warmer nights.
Common decorative details include stripes, quilted stitching, embroidered floral motifs, ruffle trim, and reversible designs.
Example oversized dimensions include Full/Queen at 98" x 98" and King at 108" x 98".
Fill materials include 100% polyester, cotton/polyester blends, and down-alternative polyester fiber; some duvet covers specify no fill. Warmth descriptions range from lightweight to all-season depending on fill and construction.