There are a number of different options that you can choose to cover a bay window. Both blinds and fabric curtains are appropriate if you choose the right style and hardware. Ideally, you want to draw attention to the dramatic effect created by a bay window and avoid making it to busy. For curtains, you have to decide what type of hardware you will use which could include rod, poles or a curved track. Regardless of which you choose, the angles make it difficult to install them. An easy option for bay window treatments is to hang a curtain swag. This is a great decorating tool to bring attention to the window and the room.