I have lived in Houston my entire life so I accustomed to all this sweltering heat. I recently moved the top floor of a 3 floor building with vaulted ceilings and my electricity bill was not too kind to me in these 100+ days of summer so I thought I would invest in some black out curtains. Oh my goodness how happy I am!!! Not only did they block out the sun... but they kept my 3rd floor vaulted ceiling apartment somewhat cooler!! Now I only have these curtains in my bedrooms but I will definitely be buying them from my living room windows as well. I have them in burgundy and they are just so beautiful and so soft!! This is definitely a great buy!!! If I made commission recommending these curtains I think I would be living very comfortably right now... have a wonderful week and I hope this review helps you!!!