We live in a very sunny city (no complaints!), and our bedroom - with a large double sliding door and double window - faces East. Which means every morning at 5:30am you are blasted right in the eye with the rising sun. We have looked for, and previously purchased, effective blackout curtains, but they have never been satisfactory. Either the amount of light blocked is marginal, the panels appear to be made of industrial material (not pretty for your room decor), and for 6 panels of 96" length, VERY EXPENSIVE. Figured we would give it one more try in hopes of ending up with something that works but also looks nice in the room. These fit the bill and some! The panel PAIRS were on sale for less than other similar single panels, and when they arrived they looked great out of the package, hung very easily with the perfectly sized grommets. They have the appearance of an expensive silk and are very heavy. Do they block the light, you ask? YES! Almost too well...it's a bit hard to get up in the morning!
I would definitely recommend them for anyone with a too-bright room, or that works nights and needs to sleep during the day.