A soft quilt usually filled with the down of the eider WordNet 3.0 & Open English WordNet

A duvet, usually called a comforter or quilt in American English, and a doona in Australian English, is a type of bedding consisting of a soft flat bag filled with either down, feathers, wool, cotton, silk, or a synthetic alternative, and is typically protected with a removable cover, analogous to a pillow and pillow case. Wikipedia

A duvet or comforter, traditionally containing eider duck down Wikipedia Disambiguation

Type of bedding Wikidata

The down of the eider duck, used as stuffing for quilts and pillows. OmegaWiki

A duvet used in combination with other blankets. Wiktionary

The down of the eider duck, used for stuffing pillows and quilts. Wiktionary

The down of the eider duck. Wiktionary (translation)