The term "draperies" is usually used for lined or backed curtains with a fuller and heavier feel. Most draperies also fall all the way to the floor, whereas curtains tend to vary in length. This sitting room has floor-to-ceiling windows on three sides, so it needed protection. To get this luxurious feel, line the fabric with bumph — a flannelette fabric that increases insulation and absorbs external noise — and then back that with 3-pass lining. Three-pass lining is a polyester cotton base cloth sprayed with white acrylic to make a membrane, followed by a black membrane and then another coat of white acrylic. It may seem like overkill, but if you have a west- or north-facing window, your furniture will thank you.