A duvet is a type of soft, thick blanket filled with down, feathers, or synthetic materials, used for warmth and comfort on a bed. It is typically covered with a removable fabric case, known as a duvet cover, which can be washed easily. Duvets are favored for their lightweight comfort and the ease with which they can be used without needing an additional top sheet.
The word "duvet" comes from the French word "duvet," which means "down" or "feathers," referring to the soft filling material typically found inside a duvet. It has been used in English since the 19th century.