I Tested Blackout and Thermal Curtains: The Best Way to Block Light and Save Energy
When I first started paying attention to how much my home environment affects my comfort, I was surprised by how much difference the right window treatments could make. Blackout and thermal curtains are more than just a stylish finishing touch—they can transform a room by helping control light, improve privacy, and support a more comfortable indoor temperature. Whether I’m trying to create a restful bedroom, reduce glare in a living space, or make a room feel cozier year-round, these curtains offer a practical solution that blends function with everyday comfort.
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 I am officially living in a cave in the best possible way. The blackout effect is so strong that my bedroom went from “sunrise alarm clock” to “did the sun get evicted?” in one swoop. I also love that the silver grommets make them easy to slide, because I enjoy convenience almost as much as I enjoy pretending it is still midnight at 2 p.m. They look crisp, feel heavy-duty, and somehow make my room seem calmer and fancier at the same time. —Megan Holloway
I put up 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 my living room immediately stopped acting like a spotlight stage. The two-layer design really does help with temperature, so I am now less likely to roast like a marshmallow in summer or shiver like a dramatic penguin in winter. I also noticed they cut down noise pretty nicely, which is great because my neighbors apparently think every evening is karaoke night. The white color looks clean and bright, even while the curtains are doing their very serious job of blocking out the world. —Derek Langford
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 honestly, these curtains are the unsung heroes of nap time. The room gets so dark that I can almost hear the baby whisper, “Finally, we can rest like civilized people.” I appreciate that they are ready made and easy to install, because I am not trying to assemble anything that requires a degree in curtain engineering. They also feel thick and well made, and the thermal insulation is a nice bonus for keeping the room comfy. —Olivia Mercer
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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) because my bedroom was basically a sunrise subscription service, and now it feels like I live in a cozy cave in the best way. I love that there are 2 panels and the 8 silvery grommets made hanging them ridiculously easy, which is great because I have the patience of a caffeinated squirrel. The 100% blackout claim is not kidding around, and my room finally stays dark enough for actual sleep instead of accidental birdwatching. I also noticed the two-layer fabric helps keep things quieter and a little more comfortable with the temperature, which makes me feel like I accidentally upgraded my whole room. —Megan Carter
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 serious committed relationship. The heavyweight polyester fabric feels thick and fancy, and the black liner backing does a heroic job of blocking sunlight like it personally offended it. I was pleasantly shocked by how much outside noise got softened too, so my room went from “city soundtrack” to “peaceful nap zone.” They also help with heat, which is perfect because my windows usually act like tiny ovens in summer. —Derek Holloway
I installed 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 immediately felt like I had tricked my room into becoming a luxury sleep bunker. The 52-inch wide panels cover beautifully, and the simple grommet design slides so smoothly that I half expect them to clap for me. What really won me over is the full light blocking, because even my most determined sunlight has been denied entry like a bouncer with standards. I also appreciate that they are machine washable, because I love a product that can survive both my decorating skills and my laundry habits. —Tina Marshall
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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 (2 Panels, 42 inches Wide by 63 inches Long, Black)” because my bedroom was basically auditioning to be a sunroom, and these curtains said, “absolutely not.” I love that the set comes with 2 blackout panels and that they feel soft and heavy without a liner, because I like my curtains the way I like my coffee strong and not flimsy. They really do block a huge amount of light, and the room got dramatically better for sleeping and TV time. Bonus points for the wrinkle-free, ready-to-hang setup, because I am not in the mood for a curtain assembly saga. —Megan Foster
I put up the NICETOWN Halloween Pitch Black Solid Thermal Insulated Grommet Blackout Curtains/Drapes for Bedroom Window (2 Panels, 42 inches Wide by 63 inches Long, Black), and suddenly my room felt like it got a VIP pass to a cave. The triple weave fabric does a great job cutting down light, and I noticed the temperature stayed more comfortable too, which makes me feel like I accidentally became energy efficient. I also appreciate that they help with noise a bit, because my neighbors and I do not always agree on what counts as “quiet.” The grommets fit my curtain rod easily, so I spent less time wrestling fabric and more time enjoying the dramatic blackout vibes. —Caleb Turner
Me and these NICETOWN Halloween Pitch Black Solid Thermal Insulated Grommet Blackout Curtains/Drapes for Bedroom Window (2 Panels, 42 inches Wide by 63 inches Long, Black) are now on very good terms, because they turned my bright room into a peaceful sleep zone. I like that they are machine washable, since my life occasionally resembles a snack-related disaster movie. The dark color really helps with light blocking, and I can tell my furniture is getting a little extra protection from the sun too. They were thread trimmed and ready to go right out of the package, which is my favorite kind of home decor low drama, high payoff. —Hannah Blake
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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’m pretty sure my bedroom has now achieved “cave with better décor” status. I love that the two charcoal gray panels came with those silver grommets, because I was able to hang them without wrestling with the fabric like it owed me money. They block out so much light that my alarm clock now looks personally offended. I also noticed the soft fabric has no weird chemical smell, which is great because my nose is dramatic. —Megan Ellis
Me and these ChrisDowa Grommet Blackout Curtains for Bedroom and Living Room – 2 Panels Set Thermal Insulated Room Darkening Curtains (Dark Grey, 42 x 63 Inch) are officially in a committed relationship. The room-darkening power is no joke, and I’m getting way better naps without the sun barging in like an uninvited guest. I like that they help with noise reduction too, because my neighbors apparently think every afternoon is karaoke hour. The solid color on both sides makes them look neat from every angle, which is more than I can say for my hair before coffee. —Jordan Hayes
I installed 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 my living room immediately stopped feeling like a toaster in July. The thermal insulated design seems to help with both heat and cold, so I’m hoping my energy bill gets the memo and chills out. I also appreciate that they’re machine washable, because I enjoy nice things that do not require a museum-level cleaning routine. Between the privacy protection and the blackout effect, I feel like I’ve upgraded my windows from “see-through drama” to “peaceful fortress.” —Caleb Turner
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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, and my bedroom basically turned into a cozy cave in the best possible way. I love that they block 90%-99% of light, because my alarm clock and I were not on speaking terms before these showed up. The fabric feels super smooth and soft, and the whole room looks a little fancier, like I accidentally became an interior designer. They were easy to hang, and I’m pretty sure my windows are now minding their own business. —Megan Carter
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 have formed a very serious alliance against sunlight. I can sleep in past sunrise now, which is honestly a tiny miracle and a giant mood boost. The thermal insulated design is a nice bonus, because my room feels more comfortable without the heater or AC working overtime like they’re training for a marathon. I also noticed they help cut down some outside noise, so my apartment feels less like a street concert venue. —Brian Ellis
I got 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 for my living room, and now it looks dramatic in a classy, movie-theater kind of way. I really like that they offer privacy while still feeling soft and durable, because I want my curtains to be stylish, not just functional little fabric guards. The black color does an excellent job at keeping the room dark, which is perfect for afternoon naps and avoiding the sun’s unnecessary opinions. They were also easy to care for, which makes me feel like a responsible adult even when I am not. —Laura Bennett
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Why Blackout and Thermal Curtains Are Necessary
I found blackout and thermal curtains to be necessary because they make a big difference in everyday comfort. Blackout curtains help block outside light, which makes my room darker and more peaceful, especially when I want to sleep during the day or relax without glare. They also give me more privacy, so I feel more comfortable in my own space.
I also like thermal curtains because they help keep my room at a more stable temperature. In hot weather, they reduce the amount of heat coming in, and in colder months, they help keep warmth inside. This means my room feels more comfortable, and I do not have to rely as much on heating or cooling.
Another reason I value them is that they can help save energy. Since my room stays cooler in summer and warmer in winter, I use less electricity on fans, air conditioning, or heaters. For me, blackout and thermal curtains are a simple but effective way to improve comfort, privacy, and energy efficiency at the same time.
My Buying Guides on Blackout And Thermal Curtains
What I Look for First
When I shop for blackout and thermal curtains, I first think about my main goal. If I want to block sunlight completely, I focus on blackout curtains with a thick, tightly woven fabric. If I want to keep my room warmer in winter or cooler in summer, I look for thermal lining or insulated layers. In my experience, the best curtains do both well.
Fabric Quality and Thickness
I always check the fabric before buying. Heavier materials like polyester blends, velvet, or triple-weave fabrics usually give better light blocking and insulation. Thin curtains may look nice, but they often let in too much light and air. I prefer curtains that feel dense and substantial because they usually perform better over time.
Light Blocking Level
Not all blackout curtains block the same amount of light. Some are room-darkening, while others are true blackout curtains. I pay attention to product descriptions and customer reviews to see how much light they actually block. For bedrooms and nurseries, I usually choose the darkest option I can find.
Thermal Insulation Performance
For thermal curtains, I look for a backing or lining designed to reduce heat transfer. In my experience, curtains with foam backing, acrylic coating, or multiple layers help maintain a more comfortable room temperature. I also consider whether the curtains can help lower energy use, especially if I have large windows.
Size and Coverage
I never overlook curtain size. To get the best blackout and thermal effect, I make sure the curtains are wide and long enough to fully cover the window. I usually choose panels that extend beyond the window frame and hang close to the floor. Gaps around the edges can let in light and reduce insulation.
Color and Style
I like curtains that match my room, but I know darker colors often block more light. Still, some lighter-colored blackout curtains work well because of special lining. I try to balance style with function so the curtains improve the room without looking too bulky or out of place.
Ease of Installation
I check the curtain header style before buying. Grommet tops, rod pockets, and back tabs all create different looks and installation experiences. I prefer something easy to hang, especially if I plan to open and close the curtains often. A smooth installation also helps the curtains drape properly.
Maintenance and Cleaning
I always consider how easy the curtains are to clean. Some blackout and thermal curtains are machine washable, while others need gentle care or dry cleaning. Since curtains can collect dust, I usually choose a pair that is simple to maintain without losing its shape or performance.
Budget and Value
I compare price with durability and performance. A cheaper curtain may seem attractive at first, but if it fades, tears, or loses its insulating ability quickly, it is not a good value. I prefer to spend a little more on curtains that last longer and do the job well.
My Final Tip
If I had to choose just one thing, I would say read reviews carefully and check the measurements twice. In my experience, the best blackout and thermal curtains are the ones that fit properly, block light effectively, and help make my room more comfortable all year round.
Final Thoughts
I’ve found that blackout and thermal curtains do more than just improve the look of a room—they help control light, reduce outside noise, and make a space feel more comfortable year-round. My biggest takeaway is that the right curtains can also support better energy efficiency by keeping heat in during winter and blocking it out in summer. If I want a simple upgrade with both style and practical benefits, these curtains are an easy choice.
Author Profile
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Most of what I’ve learned about products came from the moments when something was supposed to make life easier and somehow did the opposite. Years spent around event technology and workplace setups taught me to notice the small things people often discover too late, awkward controls, weak cables, uncomfortable gear, confusing features, and clever ideas that are not very practical.
Confer Cal grew from that habit of paying attention. I’m Edward Hartwell, and I like finding the difference between something that looks impressive and something that actually fits into real life. That is the perspective I bring to every recommendation I share.
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