Block out that light!
936320
Perfect bedroom curtains. These hang nicely, and really block out most of the outside light.
2453611
Great curtains to block out the light.  I put these behind sheer curtains and they're good for privacy and blocking out the sun.  Nothing fancy, but they look fine and are reasonable quality.
3982639
Completely blocks out sun! Make sure curtain rod is not too far from the wall or sun will shine in through the sides.
2876613
Well made and looks so expensive! They block out a lot of light. Thinking of buying another set!
4811356
They are not the most stylish, but they block out light very well! I use these and have another more sheer curtain over top to make it look a little cuter, but am very pleased with how they block light.
4751352
Love these! They are really pretty! They also completely block out the light. At night, from outside, you cannot tell our lights are on. It looks as if nobody is home. They are also great at keeping the sunlight out, which keeps the house cooler when it's hot. They do have an attached silky panel that I had not noticed in the description.
2539290
Finally cute black out curtains. This actually do block out 90% of the bright sun. I can't say it blocks sound but it will work to keep your room dark and a little cooler. The purple is close to plum color and a tad shimmery.
299961
Works great!  Blocks most of the morning light from east facing windows.  It is a big difference.  No complaints, happy with purchase.
1741530
These are great quality and are truly blackout curtains. I don't like people being able to see inside my home especially at night with lights on inside. This does the job perfectly. They fit my sidelights great as well. Love them!
3200906
I like the light covers but they do effect the light output. Easy on/off. Worth the money to protect those spendy lights
4725748
These are excellent for blocking out light and keeping the temperature of my bedroom cooler.  In my opinion they do not block noise.  Worth every penny.
3173662
My daughters room is SUPER bright and these almost completely cancel out the light. I got the dark brown. Would definitely recommend.
4141006
Works like a charm! My bedroom is so much more pleasant at night now, with my various chargers and LED's blocked. They block the annoying glow, but you can still see the light inside to ensure everything is hooked up. The pre-cut shapes are surprisingly useful.

I had one light that was particularly stubborn, but it was a simple matter to just put two light dimmers on to make it perfect.
2645669
Just what I needed to block blue light while using my electronics before bed. (These block the blue light that reduces the production of melatonin, which can interrupt your sleep) But then i got an iphone 5 and it has an amber setting! Even better than wearing these!
4924944
These curtains are great!  The pretty much completely block out the brightness from my son's nursery.  I love the color too.  I needed the tab top curtain because we have thick curtain rods.
2559157
These work great to block all of the light. There are a bunch of different sizes to fit various purposes.

The only caution I would give (not necessarily related to the product, but to solving the issue), is that just because you cover the light, doesn't mean there isn't anywhere else on the product where light could seep out. We covered a light on a nursery camera only to later discover that there are holes all along the base of the product where the light is also visible.
3368782
These curtains do a great job of blocking out almost all of the coming in through the windows.  Also helps dampen outside noise.  If you are looking for curtains to greatly reduce the amount of light, these are the ones you want.  You can't go wrong for the price.  They don't feel as thick as I expected but still work wonderfully.