A cushion is a soft bag of material, filled with wool, hair, feathers, or even paper in small pieces . It may be used for sitting on to make a chair or couch more comfortable. Cushions can be used for body support. Cushions and rugs can be used outside, to make hard ground softer. Cushions are often for a decorative purpose and can create more character and appeal to a room. Cushions can come in many different shapes and sizes. However, the most common shape of a cushion is a square or rectangle, like a pillow.