Reduce thermal loss by up to 25 percent. Buy blackout curtains to save hundreds to thousands of dollars on your heating and cooling bills. A large percentage of home heating and cooling energy loss pass through your windows. With blackout curtains in place, they will insulate your home better.

Blackout curtains come with a backing made from tight woven fabrics that are usually multiple layered to block out most light. They are heavier than normal curtains so expect them to last a long time.