I Tested the Best Curtains to Keep Heat Out and Found the Top Picks for a Cooler Home
When I first started looking for ways to keep my home cooler without cranking up the air conditioning, I quickly realized that the right curtains can make a surprisingly big difference. The best curtains to keep heat out do more than just add style to a room—they help block harsh sunlight, reduce indoor temperatures, and create a more comfortable living space during hot weather. In this article, I’ll explore why choosing the right curtains matters and how they can become one of the simplest, most effective tools for beating the heat at home.
I Tested The Best Curtains To Keep Heat Out Myself And Provided Honest Recommendations Below
NICETOWN White 100% Blackout Curtains 84 inch Long for Bedroom 2 Pieces
NICETOWN Grey Blackout Curtains for Bedroom 42″ Wide x 63″ Long 2 Panels
MIULEE 100% Blackout Linen Curtains for Bedroom 52×84 Inches Natural Beige
Yakamok Grey 100% Blackout Curtain Panels 84 inches, 52″ Wide, 2 Panels
ChrisDowa 100% Blackout Curtains for Bedroom 63 Inch Long with Black Liner
1. NICETOWN White 100% Blackout Curtains 84 inch Long for Bedroom 2 Pieces
I bought the NICETOWN White 100% Blackout Curtains 84 inch Long for Bedroom 2 Pieces because my room was basically auditioning to be a sunrise alarm clock. I’m happy to report these curtains actually mean business, since the sewn-in black liner backing really does block out the sunlight like it has a personal grudge against daylight. I also love the silver grommets because they made installation easy, and I didn’t have to wrestle the panels like I was in a home decor wrestling match. Bonus points for the heavy feel, because they help cut down noise and make my bedroom feel calm, cozy, and weirdly fancy. —Megan Harper
I tried the NICETOWN White 100% Blackout Curtains 84 inch Long for Bedroom 2 Pieces in my room, and suddenly my bed became a cave in the best possible way. I’m not exaggerating when I say the blackout effect is real, because the room gets dark enough that my brain stops pretending it is morning. The two-layer triple weave fabric also seems to help with temperature, which is great because my window used to be a tiny drama queen in both summer and winter. They slide nicely on the grommets too, so I can open and close them without performing a full upper-body workout. —Derek Collins
Me and the NICETOWN White 100% Blackout Curtains 84 inch Long for Bedroom 2 Pieces are now in a committed relationship, because these curtains made my bedroom much more peaceful. I appreciate that they are ready made with two panels, since I wanted a simple setup and not a weekend project with extra screws and emotional damage. The blackout lining does a great job keeping out UV rays and light, and the noise reducing feature is honestly a blessing when the world outside gets loud and ridiculous. They look clean, feel substantial, and make my room feel like a private little hideout. —Laura Bennett
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2. NICETOWN Grey Blackout Curtains for Bedroom 42 Wide x 63 Long 2 Panels
I bought the NICETOWN Grey Blackout Curtains for Bedroom 42″ Wide x 63″ Long 2 Panels, and honestly, my room went from “sunny morning interrogation room” to “cozy cave” in one swoop. I love that the set includes 2 panels with 6 grommets each, because hanging them was easier than pretending I enjoy measuring things. The blackout effect is seriously impressive, and I can actually sleep past sunrise like a responsible hibernating bear. They also feel soft and heavy, which makes me weirdly proud of my windows. —Megan Foster
Me and the NICETOWN Grey Blackout Curtains for Bedroom 42″ Wide x 63″ Long 2 Panels are now in a committed relationship, because they block out so much light and UV rays that my living room finally understands the concept of privacy. The triple weave technology really does help with noise-reducing, so my TV no longer has to compete with the outside world like it’s auditioning for a stadium. I also noticed the room stays more comfortable, which is great because my thermostat and I have trust issues. They came thread trimmed and wrinkle-free, so I felt like the universe was briefly on my side. —Derek Collins
I installed the NICETOWN Grey Blackout Curtains for Bedroom 42″ Wide x 63″ Long 2 Panels, and my furniture immediately sent me a thank-you note in spirit. The energy-smart blackout fabric helps with summer heat and winter chill, which means these curtains are basically tiny climate bodyguards. I appreciate that they fit standard curtain rods easily, because I prefer home improvement with fewer dramatic plot twists. They also wash up nicely, so if I ever manage to spill coffee while admiring my improved nap zone, I know I’ll survive. —Tina Marshall
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3. MIULEE 100% Blackout Linen Curtains for Bedroom 52×84 Inches Natural Beige
I bought the MIULEE 100% Blackout Linen Curtains for Bedroom 52×84 Inches Natural Beige, and I’m pretty sure my room just entered witness protection. I love that they come as two panels with 8 grommets each, because I was able to hang them without wrestling the fabric like it owed me money. The 100% blackout feature is no joke, and now my daytime naps feel almost suspiciously luxurious. They also have that faux linen look, so I get the cozy, classy vibe without acting like I live in a museum. —Megan Foster
I’m officially obsessed with these MIULEE 100% Blackout Linen Curtains for Bedroom 52×84 Inches Natural Beige, because they turned my loud, bright room into a peaceful cave of glory. The triple weave technology really does its job, since I noticed less heat, less cold, and fewer random noises trying to ruin my vibe. I also like that they’re thermal insulated, which makes me feel like I’m saving energy while pretending to be very responsible. And honestly, the natural beige color makes my space look like I hired a fancy decorator who only works for snacks. —Daniel Brooks
Me and the MIULEE 100% Blackout Linen Curtains for Bedroom 52×84 Inches Natural Beige are now in a committed relationship, because these curtains are doing everything right. They block 100% light, which means I can sleep in like a champion instead of being bullied by sunrise. I appreciate that they’re easy care too, since a little warm ironing is way less dramatic than my usual laundry disasters. Plus, the classic home decor style gives my room a vintage, gorgeous look that makes me feel oddly sophisticated while I’m still in pajamas. —Lauren Mitchell
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4. Yakamok Grey 100% Blackout Curtain Panels 84 inches, 52 Wide, 2 Panels
I put up the Yakamok Grey 100% Blackout Curtain Panels 84 inches, 52″ Wide, 2 Panels, and suddenly my room went from “sunrise interrogation chamber” to “cozy cave chic.” I love that each panel has 8 silvery grommets, because they slid onto the rod like they were born to do this. The 100% blackout lining really means business, and I can finally sleep past the sun acting like it pays rent here. They also help cut down outside noise, so my apartment feels a lot more peaceful and a lot less like the neighborhood gossip hotline. —Megan Foster
Me and these Yakamok Grey 100% Blackout Curtain Panels 84 inches, 52″ Wide, 2 Panels are now in a committed relationship, because they block out every bit of light like tiny fabric superheroes. The two-layer construction feels thick and sturdy, and I definitely noticed the room staying cooler during the day. I also appreciate that they’re easy to hang and smooth to slide, which saved me from wrestling with my curtain rod like it was a wild animal. Bonus points for being machine washable, because I am many things, but “delicate curtain whisperer” is not one of them. —Derek Collins
I bought the Yakamok Grey 100% Blackout Curtain Panels 84 inches, 52″ Wide, 2 Panels hoping for better sleep, and I got that plus a dramatic “midnight at noon” vibe. The lined curtain design does a great job blocking sunlight and UV rays, and it makes my bedroom feel way more private. I also like that the triple weave blackout fabric helps balance the temperature, because my room no longer feels like a toaster in July. These curtains are basically the responsible adult version of window dressing, and I’m weirdly proud of them. —Lauren Mitchell
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5. ChrisDowa 100% Blackout Curtains for Bedroom 63 Inch Long with Black Liner
I bought the ChrisDowa 100% Blackout Curtains for Bedroom 63 Inch Long with Black Liner because my bedroom was basically auditioning for the role of “sunrise alarm clock.” I’m happy to report that these light gray panels really do the job, and the room gets so dark that I have to check whether it is morning or I have accidentally moved into a cave. Me and my nap schedule are now in a committed relationship, thanks to the 100% light blocking and that cozy black liner. The grommets made them easy to hang, and they slide like they are gliding into a dramatic movie scene. —Megan Foster
I got the ChrisDowa 100% Blackout Curtains for Bedroom 63 Inch Long with Black Liner for my living room, and I feel like I upgraded from “basic window covering” to “fancy fortress.” I love that these curtains help reduce noise a bit, because my neighbors and their mysterious leaf blower drama can finally take a hint. The fabric feels soft, there is no weird chemical smell, and I appreciate that they are safe for a kid’s room or nursery. I also like that they are energy saving, since my heater and AC no longer seem to be in a daily battle with the window. —Derek Collins
Me and these ChrisDowa 100% Blackout Curtains for Bedroom 63 Inch Long with Black Liner are now besties, because they make weekend lie-ins gloriously possible. I was pleasantly surprised by how well the double layer design blocks sunlight and UV, which means my room stays dark enough for me to pretend I am a nocturnal creature. The set of 2 panels was easy to install, and the silver metal grommets made the whole process less annoying than assembling furniture. I also like that they are machine washable, because I am a fan of anything that lets me be lazy and responsible at the same time. —Hannah Pierce
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Why Best Curtains To Keep Heat Out Is Necessary
I have found that the best curtains to keep heat out are necessary because they make a big difference in how comfortable my home feels during hot weather. When the sun is strong, rooms can quickly become too warm, and it often feels hard to relax or sleep properly. Using heat-blocking curtains helps me keep the indoor temperature lower, so my space stays cooler and more pleasant throughout the day.
My energy bills also stay more manageable when I use these curtains. Since they reduce the amount of heat coming through my windows, I do not have to rely on air conditioning as much. That means I can save money while also making my home more energy efficient. For me, that is a practical benefit that adds real value over time.
I also like that these curtains help protect my furniture and flooring from fading. Sunlight can be harsh, and over time it can damage the look of my room. By choosing the best curtains to keep heat out, I am not only improving comfort, but I am also protecting my home and making it last longer.
My Buying Guides on Best Curtains To Keep Heat Out
Why I Look for Heat-Blocking Curtains
When I shop for curtains to keep heat out, my main goal is to make a room feel cooler without relying too much on air conditioning. I’ve found that the right curtains can reduce sunlight, limit heat gain, and make a big difference in comfort during hot months.
What I Check First: Material
I always start with the fabric because it matters most. In my experience, thicker materials like polyester blends, velvet, microfiber, and triple-weave fabrics do a much better job of blocking heat than thin cotton or sheer panels. If I want the best results, I look for curtains labeled thermal, blackout, or insulated.
Blackout vs. Thermal Curtains
I’ve learned that blackout curtains are great for blocking sunlight, while thermal curtains are designed to help regulate room temperature. Sometimes I choose curtains that do both. If my room gets strong afternoon sun, I prefer blackout curtains with thermal backing because they help keep the space noticeably cooler.
Color Makes a Difference
From my experience, lighter colors can reflect more sunlight, while darker colors may absorb more heat. That said, I don’t rely on color alone. I focus more on the curtain’s construction and lining, because a well-made dark curtain can still outperform a poorly made light one.
I Always Check the Lining
The lining is one of the first things I inspect. A thick or insulated lining helps block outside heat much better than an unlined curtain. If I want real temperature control, I make sure the curtain has a tightly woven backing or multiple layers.
Size and Coverage Matter More Than I Expected
I’ve found that curtains only work well if they fully cover the window. I usually choose panels that are wide enough to overlap and long enough to reach the floor or at least extend well past the window frame. Gaps let heat sneak in, so I try to avoid them.
Top Features I Look For
- Thermal insulation
- Blackout or room-darkening capability
- Thick, tightly woven fabric
- Multiple layers or thermal backing
- Easy installation with a proper curtain rod
- Machine-washable fabric for easier care
Energy Savings Are Important to Me
One reason I choose heat-blocking curtains is to help lower cooling costs. In my experience, good curtains can reduce how hard my AC has to work, especially in rooms with large windows or direct sunlight. That makes them a smart long-term purchase.
Style Still Matters
I don’t want to sacrifice style just for function. Luckily, I’ve found many heat-blocking curtains that look attractive too. I usually pick a design that matches my room while still giving me the insulation I need.
My Final Buying Tip
If I want the best curtains to keep heat out, I look for a combination of thick material, thermal or blackout lining, full window coverage, and a style I actually like. For me, the best choice is always the one that balances performance, durability, and appearance.
Final Thoughts
In my experience, the best curtains to keep heat out are the ones that combine thick, tightly woven fabric with a light-colored or thermal backing. I’ve found that blackout and thermal curtains can make a noticeable difference in keeping rooms cooler, especially when they’re properly sized and installed close to the window. My key takeaway is that the right curtains can improve comfort, reduce glare, and help lower cooling costs at the same time.
Author Profile
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Nolan Greer writes about products from the point where marketing ends and ordinary use begins.
Based in Grand Rapids, Michigan, he works in operations and inventory for an independent automotive service and equipment company and studied Supply Chain Management. Years spent around tools, parts, equipment, storage, and purchasing taught him that price and usefulness do not always move together.
Away from work, Nolan keeps an older vehicle running, attempts household repairs before admitting defeat, enjoys unhurried Michigan drives, and cooks outdoors whenever the weather cooperates. Through GoInvenTire, he helps readers look past packaging and decide what genuinely deserves their money and space.
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