Blanket
A blanket is a type of bedding, generally a large, rectangular piece of cloth, intended to keep the user warm, especially while they sleep. Blankets are distinguished from sheets by their thickness and purpose; the thickest sheet is still thinner than the lightest blanket, because blankets are for warmth, while sheets are for hygiene, comfort and aesthetics. Blankets are subdivided into many types, including quilts, duvets, and comforters, depending on their thickness, construction and/or fill material. Electric blankets are heated by electricity.

Blankets were traditionally made of wool, while sheets were made of cotton which is less irritating to the skin. These days, artificial fibers are frequently used for both.
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