We got the 3/8" double cell blackout shades for our bedroom and absolutely LOVE LOVE LOVE them. They not only seem to keep the drafts from the window out of the room, they also block all light coming in. Previously we had wood blinds and they let filters of light in which was totally annoying. These shades have no cord and just slide up at the touch of a button. Very well made! I would recommend them to anyone. :)