A quilt is a type of beding— a bed covering composed of a quilt top, a layer of batting, and a layer of fabric for backing, generally combined using the technique of quilting. Another technique for securing the quilt layers is tying. Tying refers to the technique of using thread, yarn or ribbon to pass through all three layers of the quilt at regular intervals. These "ties" hold the layers together during use and especially when the quilt is washed. This method is easier and more forgiving if the quilt is made by hand. Tied quilts are called, depending on the regional area, "lap", "comfort" or "comforter", among other names. Many quilts are made with decorative designs; some quilts are not used as bed covering at all, but are rather made to be hung on a wall or otherwise displayed. In British English, quilt is another way of saying duvet, wadding is another way of saying batting, and calico refers to muslin rather than to a fabric with a printed pattern on it.