[This review was collected as part of a promotion.] I have really drafty windows in my bedroom, so I was really hoping these curtains would help since they're thermal. They definitely do make a difference. I don't feel a strong draft anymore and the blackout function is a bonus. The curtains aren't light, but they aren't heavy, either. They're light enough for you to put both panels in your washer and dryer at home. They've really warmed up my room, both literally and decoratively. They are a tiny bit shorter than my windows, but I hung them up strategically so they fit. Overall, good curtains!