After looking in department stores and online for insulating black out curtains,( returning many), I finally found these marvelous curtains. The fabric hangs beautifully, they are soft and rich feeling, and make the room warm and cozy in the cold months. I'm sure they will insulate against the heat as well. They hang in front of a huge ceiling to floor sliding glass door with old single pane glass, and create a comforting boundary of privacy and warmth. The turquoise is more green than true turquoise, and beautiful.The fact that there is no lining or separate "thermal" backing makes these curtains super soft, extremely washable, and no concerns about the lining shrinking! One request, please carry these in White! Thanks Overstock!