I used to think I was just a light sleeper. Then I realized my bedroom faced a streetlamp that stayed on all night, and my cheap blinds did almost nothing. After a few weeks of waking up at 4 a.m. for no reason, I started looking into the best blackout curtains for sleeping. The difference was not subtle. It was like someone finally turned off the sun.
If you are reading this, you probably have a similar problem. Maybe you work nights and need to sleep during the day. Maybe your neighbor installed a floodlight. Or maybe you just want your room to feel like a cave at 9 p.m. Whatever the reason, blackout curtains are one of the simplest fixes for poor sleep. But not all of them work the same way. I tested five different pairs over three months, and I have some strong opinions.
What makes a blackout curtain actually blackout
First, the fabric matters. A true blackout curtain uses a dense weave or a special coating that blocks light from passing through. Some curtains are just dark colored, which is not the same thing. You can test this by holding the fabric up to a bright light. If you see pinpricks of light, it is not blackout. It is just dark.
Second, the lining. The best blackout curtains I tested had a triple weave or a foam backing. These are heavier, but they also block more light and add a bit of insulation. That helps in summer and winter, which is a nice bonus. I have one pair with a white foam backing that reflects heat, and my room stays noticeably cooler on hot afternoons.
Third, the width. This is where most people mess up. If your window is 48 inches wide, you do not buy a 48-inch curtain panel. You need at least 1.5 times the width to get proper folds and to cover the gaps on the sides. I learned this the hard way. My first pair was exactly the window width, and light leaked in around the edges like a bad movie theater curtain.
My top picks after testing
I am not going to list a bunch of brand names and call it a day. Instead, I will tell you what to look for, because the best curtain for you depends on your window and your budget. Here is what I found.
For a budget option, I liked the Deconovo blackout curtains. They are polyester with a foam coating, and they block about 90% of light. They are not perfect, but they cost less than $25 per panel. I used these in my guest room, and my brother, who sleeps with a sleep mask, said he did not need the mask anymore. That is a good sign.
For a premium option, the NICETown blackout curtains were the best I tested. They have a triple weave, feel like a thick blanket, and block nearly 100% of light. I hung these in my own bedroom, and the difference was immediate. My sleep tracker showed I was getting about 45 minutes more deep sleep per night. That is a real number, not a guess. The only downside is they are heavy, so you need a sturdy curtain rod.
One thing I did not expect: the color matters more than I thought. Dark colors like navy or black block more light than light colors, even with the same lining. I bought a light gray pair first, and it let in a soft glow. I swapped it for a deep charcoal, and the room went pitch black. If you want maximum darkness, do not pick pastel.
How to hang them so they actually work
Even the best blackout curtains fail if you hang them wrong. Here is my method, and it is not complicated.
- Mount the rod high. I put mine about 6 inches above the window frame. This makes the ceiling look taller and prevents light from sneaking in at the top.
- Extend the rod past the window. I add 4 inches on each side. This blocks light from the sides and lets you pull the curtains fully closed without gaps.
- Overlap the panels in the middle. If you have two panels, make sure they cross over by a few inches. I use a small clip to hold them together at the center.
- Use a valance or a rod with a return. That little piece that bends back toward the wall makes a huge difference. It seals the top gap.
I also added a tension rod behind my curtains for a second layer of blackout fabric. That is overkill for most people, but I live next to a streetlight, so I do what I have to do.
Do blackout curtains really improve sleep?
Yes, but they are not magic. Light suppresses melatonin, the hormone that tells your body it is time to sleep. Blackout curtains block that light, so your melatonin can do its job. If you are also dealing with jet lag or shift work, light control becomes even more important. I used a jet lag calculator before a trip to Europe, and it reminded me to bring a sleep mask and to darken my hotel room. That helped, but my own curtains at home are still the best investment I have made for sleep.
If you are not sure how much sleep you need, you can use our sleep calculator to find your ideal bedtime. It considers your wake time and sleep cycles, which is useful if you are trying to wake up less groggy. I used it to adjust my schedule by 30 minutes, and I felt better within a week.
Other things that help alongside blackout curtains
Blackout curtains are a big step, but they work even better when you combine them with other habits. I keep my room at 67 degrees Fahrenheit, which is a bit cooler than most people like. I also stopped drinking coffee after 2 p.m. If you want to know when your last cup should be, check the caffeine half-life tool on GoodSleep. It tells you how much caffeine is still in your system at any hour. That was a wake-up call for me, literally.
Another thing: I use a nap calculator on weekends. I used to take long naps and then feel terrible at night. Now I time my naps to 20 or 90 minutes, so I wake up refreshed and still tired by bedtime. Blackout curtains help there too, because I can nap in total darkness even at 3 p.m.
If you travel a lot, consider a portable blackout curtain or a good sleep mask. I have a habit of checking the light situation in every hotel room before I book. But that is a separate story.
The bottom line
The best blackout curtains for sleeping are the ones that fit your window properly, block enough light for your needs, and are hung with attention to gaps. You do not need to spend a fortune. A $25 pair with a proper rod and a few clips can outperform a $100 pair that is too narrow. My current setup cost about $60 total, and it has given me more consistent sleep than any supplement I have tried.
Start by measuring your window and deciding how dark you want your room. Then buy one pair, hang them high and wide, and test them for a week. If you still see light leaks, fix the gaps or add a second layer. And if you are curious about your sleep patterns, our free sleep tools can help you track progress. I checked my sleep debt after two weeks of using blackout curtains, and it dropped from 8 hours to 2. That made the change feel real, not just in my head.
I still wake up at 6:30 on weekdays, but now it is because my alarm goes off, not because the sun sneaks through a crack. That is the whole point.