A duvet is a type of bedding which consists of a flat bag usually stuffed with down or feathers, or both and used as a blanket. Duvets are from Europe where were made from the down feathers of the Eider duck, which is best as an insulator. Edredón is the Spanish translation of duvet. Duvets are popular in Europe (specially in Northern Europe and Scandinavia where they are the most common way of bed covering). In the twentieth century, duvets gained popularity in the rest of the world, for their ease of making a bed. Indeed, duvet is a single covering instead of a combination of sheets, blankets, and quilts or other bed covers, which is traditional in many parts of the world.
The cover is called a "duvet cover" or a "quilt cover". Nowadays, a duvet is sometimes filled with silk, wool, or artificial fibers (such as polyester batting or other artificial material). It is often confused with a comforter, although comforters go on top of the traditional sheets and blankets and are primarily decorative while duvets are used alone. In Australia it is called a "Doona", from a trademarked brand name derived from dunn meaning "down feathers". The name "Doona" is a generic term for a duvet or down quilt. Originally the term "continental quilt " was the standard name used across Australia; some regions of Australia still use this term. In Danish and Norwegian it is called a dyne.