A cushion cover or pillow cover is a cover used to contain a pillow. When it got dirty it was given to House-Elves and used as a sign on their life as servants. A cushion is a soft fluffy bag of some ornamental material, stuffed with wool, hair, feathers, polyester staple fiber, non-woven material, or even paper torn into fragments. It may be used for sitting or kneeling upon or to soften the hardness or angularity of a chair or couch. Decorative cushions often have a patterned cover material and are used as decoration for furniture.