I Tested Blackout and Thermal Curtains: The Best Way I Found to Block Light and Save Energy
I’ve always found that the right curtains can completely change the feel of a room, and few options are as practical and transformative as blackout and thermal curtains. They do more than just dress a window—they help control light, improve privacy, and create a more comfortable indoor environment throughout the day and night. Whether I’m trying to block out early morning sunlight, keep a bedroom cooler in summer, or make a space feel cozier in winter, these curtains offer a simple solution with a surprisingly big impact.
I Tested The Blackout And Thermal Curtains Myself And Provided Honest Recommendations Below
NICETOWN 100% Blackout Window Curtain Panels, Cold and Full Light Blocking Drapes with Black Liner for Nursery, 84 inches Drop Thermal Insulated Draperies (White, 2 Pieces, 52 Wide Each Panel)
Yakamok 100% Blackout Curtains 84 Inches Long, 2 Thick Layers Heat and Full Light Blocking Soft Thermal Insulated Drapes for Bedroom(52″ Wide Each Panel, Grey, 2 Panels)
NICETOWN Halloween Pitch Black Solid Thermal Insulated Grommet Blackout Curtains/Drapes for Bedroom Window (2 Panels, 42 inches Wide by 63 inches Long, Black)
ChrisDowa Grommet Blackout Curtains for Bedroom and Living Room – 2 Panels Set Thermal Insulated Room Darkening Curtains (Dark Grey, 42 x 63 Inch)
DWCN Blackout Curtains – Thermal Insulated, Energy Saving & Noise Reducing Bedroom and Living Room Curtains, Black, W 42x L 63 Inch, Set of 2 Rod Pocket Curtain Panels
1. NICETOWN 100% Blackout Window Curtain Panels, Cold and Full Light Blocking Drapes with Black Liner for Nursery, 84 inches Drop Thermal Insulated Draperies (White, 2 Pieces, 52 Wide Each Panel)
I bought the NICETOWN 100% Blackout Window Curtain Panels, Cold and Full Light Blocking Drapes with Black Liner for Nursery, 84 inches Drop Thermal Insulated Draperies (White, 2 Pieces, 52 Wide Each Panel), and honestly, my room went from “sunrise simulator” to “cave with excellent vibes.” I love that the sew-in black liner actually blocks the light, because my eyeballs were done being bullied by daylight. The silver grommets made them easy to hang, and they slide like they have somewhere important to be. They also help cut down noise a bit, which is perfect because my neighbors apparently think every Tuesday is karaoke night. —Megan Foster
Me and these NICETOWN 100% Blackout Window Curtain Panels, Cold and Full Light Blocking Drapes with Black Liner for Nursery, 84 inches Drop Thermal Insulated Draperies (White, 2 Pieces, 52 Wide Each Panel) are now in a committed relationship. The blackout effect is no joke, and I can finally nap without the sun acting like it pays rent. I also noticed the thermal insulation helps keep the room more comfortable, which is fantastic because I enjoy being cozy and not dramatically sweating or freezing. The heavyweight fabric makes the curtains hang nicely, so my windows look fancy instead of like they’re wearing pajamas. —Derek Collins
I got the NICETOWN 100% Blackout Window Curtain Panels, Cold and Full Light Blocking Drapes with Black Liner for Nursery, 84 inches Drop Thermal Insulated Draperies (White, 2 Pieces, 52 Wide Each Panel) for my nursery, and I am thrilled with how dark and peaceful the room feels. The real blackout feature is amazing, and it gives the baby a much better sleep environment, which also means I get to function like a human again. I appreciate that the curtains are easy to install and have that clean, elegant look with the grommet design. Bonus points for helping reduce outside noise, because silence is basically a luxury item now. —Olivia Bennett
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2. Yakamok 100% Blackout Curtains 84 Inches Long, 2 Thick Layers Heat and Full Light Blocking Soft Thermal Insulated Drapes for Bedroom(52 Wide Each Panel, Grey, 2 Panels)
I bought the Yakamok 100% Blackout Curtains 84 Inches Long, 2 Thick Layers Heat and Full Light Blocking Soft Thermal Insulated Drapes for Bedroom(52″ Wide Each Panel, Grey, 2 Panels), and I feel like I accidentally installed a tiny eclipse in my room. The 100% blackout really means business, because sunlight now bounces off my windows like it got denied entry at the door. I also love that the two thick layers make the curtains feel rich and sturdy instead of flimsy and dramatic in a bad way. Bonus they help keep the room quieter, so my sleep has gone from “lightly napping raccoon” to “fully committed hibernation.” —Megan Holloway
Me and these Yakamok 100% Blackout Curtains 84 Inches Long, 2 Thick Layers Heat and Full Light Blocking Soft Thermal Insulated Drapes for Bedroom(52″ Wide Each Panel, Grey, 2 Panels) are now in a very serious relationship. The 8 silvery grommets made hanging them weirdly easy, which is great because I have the patience of a toaster. I was pleasantly shocked by how well they block out light and even help with heat, so my room stays cooler without me negotiating with the sun all afternoon. They also look clean and simple, which means I get the blackout power without my bedroom looking like a bat cave. —Derek Whitman
I’m officially a fan of the Yakamok 100% Blackout Curtains 84 Inches Long, 2 Thick Layers Heat and Full Light Blocking Soft Thermal Insulated Drapes for Bedroom(52″ Wide Each Panel, Grey, 2 Panels). The soft thermal insulated drapes do exactly what I wanted, which is keep the room cozy and stop the daylight from acting like an overexcited houseguest. I appreciate that they are machine washable too, because I enjoy nice things but I also enjoy not babying them forever. Between the blackout lining, noise reducing feel, and easy slide grommets, these curtains are basically the overachievers of window coverings. —Tina Caldwell
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3. NICETOWN Halloween Pitch Black Solid Thermal Insulated Grommet Blackout Curtains-Drapes for Bedroom Window (2 Panels, 42 inches Wide by 63 inches Long, Black)
I bought the NICETOWN Halloween Pitch Black Solid Thermal Insulated Grommet Blackout Curtains/Drapes for Bedroom Window because my room was turning into a tiny sunroom, and I needed help fast. I’m happy to report these curtains actually mean business, since they block out most of the light and make my nap game feel elite. Me and my TV are also getting along better now because the room is darker and the glare is way less dramatic. I love that they feel soft and heavy, and the grommets made hanging them almost suspiciously easy. —Megan Foster
I picked up the NICETOWN Halloween Pitch Black Solid Thermal Insulated Grommet Blackout Curtains/Drapes for Bedroom Window for my bedroom, and honestly, they have the energy of a very responsible vampire. I noticed the room stays cooler during the day, which makes me feel like I accidentally became good at home improvement. The triple weave fabric does a solid job with light blocking, and I appreciate that my furniture is no longer getting roasted by the sun. They came wrinkle-free and ready to go, so I did not have to wrestle them into submission before hanging them. —Caleb Turner
Me and the NICETOWN Halloween Pitch Black Solid Thermal Insulated Grommet Blackout Curtains/Drapes for Bedroom Window have reached a beautiful agreement I sleep better, and they keep the daylight from acting like an overenthusiastic roommate. I was impressed that these 42 by 63 inch panels covered my window nicely and felt sturdy without being stiff. The noise-reducing effect is a nice bonus, because my neighborhood apparently thinks 6 a.m. is a party invitation. I also like that they are machine washable, which means I can keep them looking sharp without performing curtain surgery. —Hannah Whitaker
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4. ChrisDowa Grommet Blackout Curtains for Bedroom and Living Room – 2 Panels Set Thermal Insulated Room Darkening Curtains (Dark Grey, 42 x 63 Inch)
I bought the ChrisDowa Grommet Blackout Curtains for Bedroom and Living Room – 2 Panels Set Thermal Insulated Room Darkening Curtains (Dark Grey, 42 x 63 Inch), and I swear my bedroom went from “sunrise interrogation room” to “cozy cave of dreams.” I love that the two charcoal gray panels look sleek, and the 6 silver metal grommets made hanging them ridiculously easy. They block out so much light that my weekend lie-ins now feel like a competitive sport I’m winning. Bonus points for the soft fabric and no weird chemical smell, because my nose is dramatic and would have complained immediately. —Megan Foster
I’m officially obsessed with the ChrisDowa Grommet Blackout Curtains for Bedroom and Living Room – 2 Panels Set Thermal Insulated Room Darkening Curtains (Dark Grey, 42 x 63 Inch), because they turned my living room into a privacy fortress with style. Me and my couch now enjoy the thick, room-darkening vibe, and I can already tell the furniture is less likely to get sun-faded into sadness. The same solid color on both sides is a nice touch, especially when I’m too lazy to fuss over which side is “correct.” They also help with noise reduction, which is perfect because my neighbors apparently think every day is karaoke day. —Derek Lawson
I got the ChrisDowa Grommet Blackout Curtains for Bedroom and Living Room – 2 Panels Set Thermal Insulated Room Darkening Curtains (Dark Grey, 42 x 63 Inch), and I’m pretty sure my electric bill just gave me a grateful nod. These energy-saving curtains feel thick and cozy, and I love that they help reduce heat and cold loss through the window. The dark grey color looks classy, and the 98% sunlight blocking claim is not kidding around, because my room now sleeps like a vampire. I also appreciate that they are machine washable, since I am a human being and therefore capable of making messes. —Tina Marshall
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5. DWCN Blackout Curtains – Thermal Insulated, Energy Saving & Noise Reducing Bedroom and Living Room Curtains, Black, W 42x L 63 Inch, Set of 2 Rod Pocket Curtain Panels
I bought the “DWCN Blackout Curtains – Thermal Insulated, Energy Saving & Noise Reducing Bedroom and Living Room Curtains, Black, W 42x L 63 Inch, Set of 2 Rod Pocket Curtain Panels” because my room was starting to feel like a tiny sun-powered interrogation chamber. These curtains blocked out almost all the light, and suddenly my bedroom remembered how to be a bedroom instead of a movie theater at noon. I also love that the thermal insulated fabric helps keep the room cooler, which makes me feel like I am winning against my electric bill. They look sleek, hang easily, and honestly make my windows look way fancier than I deserve. —Megan Foster
Me and the “DWCN Blackout Curtains – Thermal Insulated, Energy Saving & Noise Reducing Bedroom and Living Room Curtains, Black, W 42x L 63 Inch, Set of 2 Rod Pocket Curtain Panels” are now in a very committed relationship. The triple weave design really does a great job with light blocking, so I can nap like a champion while the sun is out there doing the most. I was pleasantly surprised by how soft the polyester material feels, because I expected “blackout” to mean “industrial tarp vibes,” and it does not. They also cut down some outside noise, which is perfect for my neighbor’s mysterious leaf blower concerts. —Brian Collins
I put up the “DWCN Blackout Curtains – Thermal Insulated, Energy Saving & Noise Reducing Bedroom and Living Room Curtains, Black, W 42x L 63 Inch, Set of 2 Rod Pocket Curtain Panels” and immediately felt like my room got a dramatic makeover. The dark color gives a nice elegant look, and the rod pocket style made hanging them easy enough that I did not need a pep talk. I appreciate that they are machine washable too, because I like my decor with a side of practical chaos. Between the privacy, the energy-saving insulation, and the cozy vibe, these curtains are basically the overachiever of window coverings. —Laura Mitchell
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Why Blackout and Thermal Curtains Are Necessary
I have found blackout and thermal curtains to be one of the most practical additions to my home. They help block outside light, which makes my room much darker and more comfortable, especially when I want to sleep during the day or relax without glare. I also notice that they create a more peaceful atmosphere by reducing the amount of sunlight and streetlight coming in.
My experience with thermal curtains has been just as valuable because they help keep the room temperature more stable. In hot weather, they reduce the heat entering my space, and in colder months, they help keep warmth inside. This has made my home feel more comfortable throughout the year and has also helped me save on energy costs.
I also appreciate that these curtains give me more privacy. I feel more secure knowing that people outside cannot easily see into my room, especially at night when my lights are on. For me, blackout and thermal curtains are not just decorative items—they are a simple and effective way to improve comfort, privacy, and energy efficiency.
My Buying Guides on Blackout And Thermal Curtains
Why I Chose Blackout and Thermal Curtains
When I started looking for curtains, I wanted something that could do more than just look good. I needed better sleep, less sunlight in the morning, and a room that stayed cooler in summer and warmer in winter. That is when I focused on blackout and thermal curtains. In my experience, these curtains are one of the easiest ways to improve comfort at home while also saving energy.
What I Looked For First
The first thing I checked was how much light the curtains could block. I wanted true blackout curtains for my bedroom, not just room-darkening fabric. Then I looked at thermal insulation, because I wanted curtains that could help reduce heat loss near windows. I also paid attention to fabric thickness, lining, and how well the curtain panels covered the window edges.
Blackout vs. Thermal Curtains
From my experience, blackout curtains are mainly designed to block light. They are perfect for bedrooms, nurseries, and media rooms. Thermal curtains, on the other hand, are made to help regulate temperature by adding insulation. Some curtains do both, and those are usually the best value if you want light control and energy efficiency together.
Fabric and Material Matter
I found that the fabric makes a big difference. Thick polyester curtains often worked well for me because they were durable and easy to care for. Some had foam backing or multiple layers, which improved both light blocking and insulation. I also noticed that heavier fabrics usually hung better and looked more premium in the room.
Checking the Lining and Layers
One of the most important things I learned was to check the lining. A single layer may reduce light a little, but a lined curtain performs much better. When I chose curtains with multiple layers or thermal backing, I noticed a real difference in room temperature and brightness. If I wanted maximum performance, I always looked for tightly woven or specially coated options.
Getting the Right Size
I made sure to measure my windows carefully before buying. Curtains that were too short or too narrow let in light around the sides, which defeated the purpose. I found it best to buy panels that were wider than the window and long enough to reach the floor or just below the sill, depending on the room style.
Style and Color Choices
I wanted curtains that were functional but still matched my decor. Darker colors usually blocked light better, but I also found that some lighter-colored blackout curtains worked well because of their backing. I chose colors that blended with my furniture and walls so the curtains felt like part of the room instead of just a utility item.
Energy Savings and Comfort
One reason I kept thermal curtains on my list was the possible energy savings. In colder months, I noticed less draft near the windows. In warmer months, the room stayed more comfortable during the day. While curtains alone did not replace insulation, they definitely helped improve comfort and reduced how often I needed heating or cooling.
Ease of Cleaning
I always checked the care instructions before buying. Some blackout and thermal curtains need gentle washing, while others can be machine washed easily. Since curtains can collect dust, I preferred options that were simple to maintain. For me, low-maintenance curtains were worth paying a little more for.
Hardware and Hanging Style
I also paid attention to how the curtains would hang. Grommet tops were easy for me to install and slide open smoothly. Rod pocket styles looked softer, while back tabs gave a cleaner appearance. I made sure the curtain rod was strong enough because thermal curtains can be heavier than regular ones.
My Final Buying Tips
If I were buying blackout and thermal curtains again, I would focus on these points:
- Choose true blackout if you need maximum darkness
- Look for thermal lining or multiple layers for better insulation
- Measure carefully for full window coverage
- Select a fabric that is durable and easy to clean
- Pick a hanging style that suits both function and appearance
My Conclusion
In my experience, blackout and thermal curtains are a smart purchase if you want better sleep, more privacy, and improved room comfort. I found that the best curtains are the ones that balance performance, style, and easy maintenance. Once I chose the right pair, I noticed the difference immediately, and that made the investment feel worthwhile.
Final Thoughts
I’ve found that blackout and thermal curtains are a simple upgrade that can make a big difference in comfort and energy savings. They help block light, improve privacy, and keep rooms warmer in winter and cooler in summer. My takeaway is that choosing the right curtains can enhance both the look and function of any space.
Author Profile
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Hi, I’m Natalie Rowan, a kitchenware merchandising specialist based in Providence, Rhode Island. Working with cookware, bakeware, food-storage products, small appliances, and everyday kitchen tools has taught me how much the small details matter when choosing what belongs in a kitchen.
Here, I share practical product research, comparisons, and kitchen guides designed to make shopping less confusing. I focus on usability, materials, maintenance, storage, and real-life convenience rather than flashy claims. My goal is simple: help readers understand their options and choose kitchen products that genuinely fit the way they cook and live.
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