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For a bedroom that gets dawn sun, the best blackout curtains are the panels that block light in your chosen color and fit the window with as few edge gaps as possible. A “blackout” label alone is no guarantee of a dark room: light can pass through fabric or enter around the top, sides, center seam, and bottom. Compare the exact panel variant, then size and hang it to cover more than just the glass.
What makes a blackout curtain effective?
There are two separate issues: how much light passes through the curtain itself, and how much sunlight bypasses it around the edges. A densely constructed or lined panel may address the first; generous coverage and careful installation address the second. Neither guarantees complete darkness in every room.
Consumer Reports’ guide, updated January 1, 2026, says it tested 18 curtain products from nine popular brands. Its described light-leak test held each curtain against a bright 5,000-lumen flashlight and observed light escaping onto a white wall. It also assessed thermal insulation with a temperature-controlled metal box. Consumer Reports reports substantial variation: many products did not deliver blackout conditions, and only two of the nine tested lines effectively blocked light across their color offerings. That finding does not establish that every color or model from any one brand performs the same way. Read Consumer Reports’ guide and testing details.
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1Fix the driver behind crashes, sound loss and screen glitches2Repair Windows errors before they cause bigger problems3Scan for outdated or missing drivers - takes under a minuteColor is worth checking because Consumer Reports tested light and dark colors and found differences. Look for evidence about the specific color and construction you plan to buy rather than assuming a brand-wide result. The guide names Amazon Basics, BGment, Gracie Oaks, Ikea, Lemomo, Mainstays, Nicetown, Pottery Barn, and Threshold among the lines considered, but the available information does not establish a universal winner or provide a complete score-by-score comparison.
#1 Best Overall
- READY MADE: Set includes 2 BLACKOUT CURTAINS PANELS of 42" wide x 63" length with 6 grommets top each. Quality fabric without liner feels soft and heavy.
- SERVE WELL: Curtains impede 85%-99% light and UV rays(Dark color curtains work well). Noise-reducing, better TV viewing thanks to the innovative triple weave technology.
- ENERGY SMART: Triple weave blackout fabric balances room temperature by insulating against summer heat and winter chill. Protect your furniture, floors, and artwork from the ravages of the sun, the drapes will pay for themselves off over time.
- GOOD TO GO: Thread trimmed and wrinkle-free, ring (1.6-inch inner diameter) fits easily with standard curtain rods. All sets for you to put them up right away.
- EASY TO MAINTAIN: NICETOWN blackout curtains are made to last. Machine washable in cold water, tumble dry. Quick ironing or steam clean when needed. Visiting the NICETOWN store, find out your favorite curtains.
How to choose curtains for an early-sun bedroom
Check the exact panel and color
Prioritize credible light-blocking evidence for the exact variant, not just the product name. Check whether the panel is lined or uses a dense weave, and whether the listing’s claims are independently measured or are manufacturer claims. NBC Select’s June 25, 2025 guide, for example, attributes “up to 99%” light-blocking claims to a brand; treat that as an attributed claim, not an independent test result. Specifications and listings can change. See NBC Select’s guide and product details.
Measure for the planned rod position
Measure the window, then plan the rod or rail to extend beyond the glass on both sides. Consumer Reports advises extending the rod or rail and curtains well beyond the window edges. NBC Select’s interviewed experts suggest allowing at least 8 to 10 inches beyond each side when the room permits. For floor-length panels, they suggest a hem about an inch above the floor. These are practical fitting recommendations, not a guarantee of a completely dark room.
Rank #2
- SIZE & MATERIAL:Set includes 2 panels blackout curtains（52" Wide by 84" Long). Each panel has 8 grommets.The interior diameter of hole is 1.6 inch.It's easy to hang. Curtains are made by quality faux linen.
- BLACKOUT CURTAINS: Thermal insulated blackout curtains could block 100% light out to darken your room completely.Suitable for late sleepers, shift workers, seniors, parents, students and computer operators to enhance their quality of sleep well during the day.
- TRIPE WEAVE TECHNOLOGY:We adopt tripe weave technology to make material. With the help of this technology, curtains could insulate the room from the heat and cold all the year, so that it will save energy. Also,curtains could reduce the noise to keep your room quiet. Blackout curtains could provide you a comfortable environment with privacy.
- CLASSIC HOME DECOR:Quality linen curtains could decorate your room into a vintage, gorgeous and luxurious style. It is available in 8 sizes to accommodate your bedroom, living room, den,etc.
- EASY CARE: If there are wrinkles when opening the packaging. Warm iron or steam iron and tumble dry at low temperatures if necessary. Don't use sharp things scratching curtains.Due to different screen display, the color of actual item may vary slightly from images.
Check both the panel width and length against the extended rod position, not just the window dimensions. If two panels meet in the middle, leave enough width for them to overlap or close without a daylight slit. Consider the top gap too: a standard rod mounted well above the frame can leave room for sunlight to spill over the curtain.
Account for weight, daily use, and care
Blackout-lined panels may weigh more than ordinary curtains, so make sure the rod, brackets, and wall mounting can safely support the chosen curtains. NBC Select’s experts note that ring or traverse systems can make daily opening easier than some rod-pocket or grommet arrangements. Check the exact listing for hanging style and cleaning instructions before purchase.
Rank #3
- SET DETAILS: 2 charcoal gray curtains per package. Each panel measures 42 inch wide by 63 inch long with 6 silver metal grommets (1.6 inch inner diameter) on top, easy to install and slide.
- LIGHT BLOCKING: these bedroom curtains block out 98% sunlight and UV (darker color works better). Get you a good night sleep, afternoon nap and weekend lie-ins. Also protect furniture and carpet from the fading effects of the sun.
- QUALITY FABRIC: These thick living room curtains work well in noise reducing and privacy protection. Same solid color on both sides. The material feels soft with no chemical smell, safe for kids room and nursery room.
- ENERGY SAVING: these energy efficient curtains can reduce room heat and cold loss through window during winter and summer, help cut your energy bills.
- EASY CARE: these privacy drapes are machine washable below 86℉; Gentle cycle; Do not bleach; Tumble dry low; Warm iron.
Replace the panels or add a blackout liner?
If you like your existing curtains, a separate blackout liner can be an alternative to replacing the decorative panels. NBC Select’s guide lists the Rose Home Fashion Thermal Insulated Blackout Curtain Liner Panel and presents liners as a potentially effective, often more economical option based on advice from an interior designer it quotes. That is expert guidance reported by a shopping guide, not independent lab proof. Check that the liner fits your existing panels and attachment method, and account for the added weight.
If buying new, NBC Select lists Amazon Basics Room Darkening Blackout Window Curtains as polyester, triple-weave panels with machine-washable care and grommet or rod-pocket options in listed widths and lengths. Verify the current listing, color, dimensions, hanging style, and care instructions for the exact variant. Consumer Reports also included Amazon Basics among its tested lines, but its reported variation across brands and colors is a reason not to treat the name alone as a guarantee.
Rank #4
- Made of high quality durable 100% polyester fabric, our blackout curtains are super smooth, soft and free from chemical smell
- Package Includes: 2 black curtain panels, each blackout curtain measures 52 inch wide and 84 inch length constructed with 8 silver grommets measuring 1.6 inches inner diameter
- Blackout Curtains and Privacy Maximization: Curtains impede 85%-99% light and UV ray(Darker colors more better).The curtains are made using a triple weave innovative production method, and they help maximize privacy and reduce some noisy
- Energy Saving Curtains: These thermal insulated curtains help prevent energy loses by insulating hot summers and cold winters. Perfect thermal curtains for bedroom, living room, kids room and nursery room
- Care Instructions: Our room darkening blackout curtain machine washable, do not bleach, iron at low temperature settings
Will blackout curtains help with heat or sleep?
Thicker lined curtains may moderate drafts or direct sunlight in a room, but the evidence here does not establish a specific energy-saving amount for curtains. Do not confuse curtain descriptions such as “thermal” with formal window ratings. ENERGY STAR explains that NFRC ratings for qualified windows, doors, and skylights include U-factor, Solar Heat Gain Coefficient (SHGC), and Visible Transmittance (VT); a lower SHGC means less solar energy passes through a rated window. Those are window-product ratings, not curtain-performance scores. Learn about ENERGY STAR’s window ratings.
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Consumer Reports also cites a 2022 nationally representative survey of 2,084 U.S. adults: among respondents who bought blackout curtains or shades in the prior year, 88 percent said they were somewhat or very effective in helping improve sleep. That is a self-reported perception, not a clinical trial or proof that curtains treat insomnia. Phyllis Zee, professor of neurology and sleep medicine and director of the Center for Circadian and Sleep Medicine at Northwestern University’s Feinberg School of Medicine, says: “even ‘dim to moderate levels of light can negatively affect your health and sleep quality.” Curtains can reduce light exposure, but they do not by themselves resolve a sleep disorder.
Quick Recap
Best Value
- Pair Sold: Each package includes 2 panels of blackout curtains. Each panel measures 40"W x 63"L, with a pair measuring 80"W x 63"L. Each panel has 6 anti-rust silver grommets(1.6 inch inner diameter) which would fit most standard curtain rods
- Light Blocking: Our blackout curtains block 95% to 60% of light and UV, with darker colors up to 95% and medium shades at 80%. Even white color reduces light by 60%. Whether you need darkness for deep sleep in the bedroom or reduced glare for movie nights in the living room, these curtains deliver light blockage while enhancing your space's comfort and aesthetics
- High-Quality Material: Crafted from high-quality 225GSM polyester fabric, these curtains offer enhanced durability and elegant drape. The soft blackout material features triple-layer weaving technology, with a middle layer of black yarn for superior light blocking and privacy. Both sides feature the same refined color, ensuring a seamless look that elevates your home’s aesthetic with understated sophistication
- Energy Saving: The thermal-insulated fabric keeps heat out in summer and retains warmth in winter, reducing your reliance on AC/heating and lowering energy costs by up to 15%. They are perfect for living rooms, bedrooms, patios, villas and offices
- Easy Care: Machine washable in cold water. Tumble dry. Gentle cycle. Do not bleach. Quick ironing or steam cleaning at low temperature if needed
Quick checklist before you buy
- Light blocking: Look for evidence on the exact color and construction; do not rely on the word “blackout” alone.
- Coverage: Measure panel width and length for a rod or rail that extends beyond the window, and consider gaps at the top, center, and bottom.
- Installation: Check the curtain’s weight against your existing hardware and choose a hanging system that suits how often you open the curtains.
- Care and terms: Verify current cleaning instructions, availability, price, and return terms for the exact listing; these can change.
- Heat control: Treat thermal descriptions as product claims, not as NFRC or ENERGY STAR curtain ratings.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
