Curtains are a piece of fabric or textile material that is hung in front of a window to provide privacy, regulate the amount of light entering a room, and improve its aesthetic appeal. They are typically made of materials such as cotton, silk, linen, or polyester and come in a variety of styles and designs, including patterns, solids, and sheers.

In addition to their practical functions, curtains can also enhance the decor of a room by adding color, texture, and visual interest. They can be chosen to match or contrast with the wall color or furniture in a room, or used as a statement piece to create a focal point. Some popular types of curtains include tab top, grommet, rod pocket, and pinch pleat.