You can use just the comforter itself for the curtain if you are looking for a very quick and dirty solution, or you can pick out some fabric to be sewn over the material for a more pleasing aesthetic.Ĭut your fabric a couple inches larger than the actual window measurements. Measure your window and find something strong and solid (imagine a rigid dowel or heavy stick) to span the bottom of the window to give your curtain some structure (and to make it easy to roll up and down).

Doubling the comforter will increase the insulative value and add weight to keep your curtains pressed tightly against the wall.

Old comforters make for a great filling in thermal curtains, especially since they can be had for very cheap ($5-10) at your local thrift store. If you are handy with a sewing machine or know someone who is, there’s not much more you need than some old blankets or comforters, fabric, and a fair amount of time. They are a thick and heavy buffer and can significantly decrease the money you spend on energy to heat your house. Thermal curtains are energy-efficient window shades that insulate against the cold around your windows.