We Tested the Best Blackout Curtains–Our Picks Block Light and Help You Sleep (2024)

All curtains can offer privacy and add a little style to your space, but blackout curtains bring a bit more to the table—or window, pun intended. Constructed out of thicker material or woven with special dark fibers, blackout curtains help you create your ideal sleep environment by blocking incoming light, and helping to shield rooms against heat, cold, and noise.

We recently hung 17 different blackout curtains at home, testing just how well they could keep light, sound, and temperature changes from interrupting our sleep. We considered every last detail, down to the thickness, material, and appearance, gaining keen insight into the best blackout curtains for bedrooms, living rooms, nurseries, and home theaters.

Our Top Picks

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What We Like

  • Sleek design with smooth grommets

  • Excellent at blocking light

  • Thick, high-quality fabric

What We Don’t Like

  • Price varies depending on color

The Sun Zero Nordic Blackout Curtains wowed us the most of the 17 blackout curtain sets we tested. This option boasts a high-quality design, comes in multiple sizes and colors, and blocks light effectively. They were also effective at keeping the room cooler and blocking heat during sunny summer afternoons.

Out of the package, we were impressed with the thick and sturdy material. We liked that it wasn’t overly heavy or stiff like other options; the fabric felt flexible and pleasantly soft. These curtains are also machine washable, making the cleaning process a breeze.

We set up this set in a primary bedroom with a glass sliding door, layering them over an existing window shutter. We were pleased to find that the curtains blocked light much better than the shutter. They created a near-dark environment together, perfect for limiting the bright morning sun and for shielding the last bit of moonlight trying to sneak in on movie night.

The heading of the curtain has grommets rather than a curtain rod pocket. While a rod pocket often better prevents light from passing through, we found that these curtains were still highly effective and offered a sleek look. Plus, grommets typically make it quick and easy to hang the curtain and they allow for the curtains to be smoothly opened, in our experience.

These curtains are available in 22 chic hues, but the price can vary depending on your color choice. We opted for the sage green color, which looked especially stylish but slightly more pastel than the product photo online. For us, this was a pleasant surprise but buyers may want to plan ahead for potential, slight color variations.

You can also choose from eight size options to match your window’s dimensions. All things considered, we highly recommend this affordable blackout curtain because of its quality, performance, and value.

Dimensions: Eight options from 52 x 54 inches to 104 x 108 inches | Material: Not listed | Heading: Grommets | Number of Panels: 2

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What We Like

  • Slight noise reduction

  • Nicely insulating

  • Basic and value-packed

What We Don’t Like

  • Limited size and color selection

  • Cheaper look and construction

The IKEA Majgull Blackout Curtains are a solid pick if you’re looking for a basic and reliable blackout curtain. During testing, we were thrilled with how they blocked out around 95 percent of light, allowing just a bit through around the edges.

We used these curtains in a household situated near a highway and found that, while they didn’t block out sound completely (most curtains don't), they did help limit some of the noise from passing cars. What’s more, they helped reduce the heat from the morning sun and kept the room from getting warmer than normal.

In terms of stitching and overall construction quality, these blackout curtains are quite basic. We think these would be a great option for kids' rooms where blocking light is a priority over style. The polyester fabric felt durable, but we don’t think the curtains offer a particularly stylish look compared to other options on the market.

Note that these blackout curtains are available in a limited range of colors and sizes, so they may not be the best option if you don’t have a standard-sized window. We opted for the dark blue option, which was more similar to royal blue upon arrival.

Dimensions: 57 x 98 inches | Material: Polyester | Heading: Grommets | Number of Panels: 2

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What We Like

  • Soft, high-quality feel

  • Flexible fabric

  • Stylish look

What We Don’t Like

  • Not the most effective at blocking out light

These linen curtains from Quince bring beautiful style to your bedroom, living room, or anywhere you need to filter light without sacrificing style.If you’ve avoided blackout curtains because of a stiff feel and drab look, the elegant linen construction may change your mind. The fabric is high quality, flexible, and exceptionally soft, and the lining drapes nicely, too.

While our testing revealed that this set isn't as light-blocking as other options, we still determined that these panels blocked the majority of incoming light (around 80 percent). We also like that these curtains have both a rod pocket and back tab, both of which look stylish and sleek. This product consists of a linen curtain and polyester lining, rather than a singular piece of fabric.

At $89 for a single panel, these curtains come at a higher price point than other options on this list. However, they're still a wonderful investment for anyone seeking a high-quality and stylish option. They're also attractive and do not look like typical blackout curtains, making them a great choice for those who want to balance functionality and aesthetics.

Dimensions: Three options from 48 x 84 inches to 48 x 108 inches | Material: Linen, polyester | Heading: Rod pocket, back tab | Number of Panels: 1

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What We Like

  • Soft and flexible velvet texture

  • Aesthetically pleasing look

  • May help reduce dust and improve air quality

What We Don’t Like

  • Some light leakage in the middle

Offering both function and style, the Gracie Oaks Olivia Signature Velvet Curtains are definitely an upgrade from your typical blackout curtain. In our testing, we found they blocked nearly all light (90 to 95 percent) with only a bit of light leaking through the break in between the panels.

Not only did they also muffle sounds slightly, but we found that they actually helped improve the air quality of the bedroom where the curtains were placed, as they blocked dust from getting into the room, according to changes in room air purifier readings.

We’re also huge fans of the flexible and soft velvet material, which offers an elegant look. They aren’t overly stiff or thick but have a nice medium weight that looks and feels high quality. The curtains draped nicely, but note that there’s a fair amount of fabric so we weren’t able to pull the curtains completely to the side. They also have a weighted hem to prevent movement. The curtains have a rod pocket top and back tabs for your choice of installation.

There's also a whopping 29 colors and 13 sizes to choose from. Considering the simple yet timeless design and impressive performance during testing, we think these would work well in just about any room.

Dimensions: 13 options from 50 x 63 inches to 100 x 120 inches | Material: Velvet | Heading: Hook belt, back tab | Number of Panels: 1

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What We Like

  • Blocks out light completely

  • Heavy, high-quality material

  • Can be paired with existing curtains

What We Don’t Like

  • Small loops

When you want the benefits of light blocking but prefer the look of your existing curtains, you might consider a blackout liner. We particularly like this highly effective and well-designed one from Rose Home, which impressively blocked 100 percent of light during testing.

The material is a stiff plastic, which helped with insulation as well.The liner felt moderately heavy and flexible overall, and we were generally impressed with the durability and quality. Plus, it’s machine washable for easy upkeep.

While moving the liner on the curtain rings was smooth, keeping the liner and curtains aligned was a bit trickier. Additionally, we found that the loops in the rod pocket were a bit of a tight fit for our curtain rod, so you may have to opt for the included rings if you have a larger rod. The white liner matches well with most styles of curtains, and you can choose between six sizes to pair with your window size.

Dimensions: Six options from 27 x 59 inches to 50 x 92 inches | Material: Polyester | Heading: Rod pocket or rings | Number of Panels: 2

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What We Like

  • Heavy-duty and durable

  • Available in many colors

  • Effective at blocking light

What We Don't Like

  • Colors may differ in-person

  • Heavy to open and close

If you're fitting a window with a unique size (like a picture window in the living room), check out this option from Nicetown. Sold as a set, you can pick from sizes as small as 37 x 40 inches and as large as 70 x 108 inches (big enough to cover a sliding glass door).

We installed a set of Nicetown Blackout Curtains over a bedroom window, choosing a blue pair measuring 52 x 84 inches. We estimated that these curtains block 90 to 95 percent of incoming light from the bright city street outside the window.The only visible brightness was from the top of the curtain because the rod didn’t allow the curtain to sit flush against the wall.

While we found that these curtains moved smoothly along the curtain rod, we recommend using two hands for adjustments because they are heavy. They’re also a bit stiff, with a rough texture—not a soft, smooth, flowy curtain. However, the opaque material does an excellent job blocking light, so it serves its purpose well.

After six months of testing, these curtains continue to perform exactly as we expected. They block out almost all light, and we’ve even had trouble getting out of bed in the mornings. The curtains remained durable and were easy to take down when we decided to change what room they were in.

Dimensions: 41 options from 37 x 63 inches to 70 x 108 inches | Material: Polyester | Heading: Grommet |Number of Panels: 2

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What We Like

  • Tie-backs have velcro for easy fastening

  • Available in various sizes and colors

  • Machine washable

What We Don't Like

  • Tie-backs are not connected to curtains

If you want to let some light in during the day, consider a pair of blackout curtains with tie-backs, like this set from Amazon Basics. It conveniently includes two Velcro tie-backs to use when you don’t want the curtains to fully cover your window.

Based on our testing experience, you won’t be disappointed in their light-blocking ability, either. The machine-washable polyester material didn't allow any light through; the only incoming bit was from a small opening between the two curtain panels.

The rod pocket header easily fit over our existing curtain rod, but you can also order these with a grommet or back pocket to accommodate different methods of hanging the curtains.There are various sizes and colors available too, but note that color availability isn’t consistent across all sizes.

Speaking of color, we found that the liner gave the white curtains a blue hue, but that’s not unheard of for light-colored blackout curtains. All summed up, we’d recommend these blackout curtains for anyone who wants to effectively block incoming light at night but keep the curtains tidy with matching tie-backs during the day. Just note that the tie-backs are not attached to the curtains themselves, so you’ll have to keep track of them when they’re not in use.

Dimensions: Options ranging from 42 x 63 inches to 52 x 96 inches | Material: Polyester | Heading: Rod pocket (hidden loop and grommet options also available) |Number of Panels: 2

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What We Like

  • Completely light blocking

  • Very insulating

  • Smooth, silky texture

What We Don’t Like

  • Material has a slight sheen

Get rid of light glare by picking dark, light-blocking curtains for your home theater—or any room that can benefit from a cozy, cinema-like ambiance. For that purpose, we recommend the Sun Zero Oslo Blackout Curtain Panel. After testing a pair of these curtains, we can vouch for their claim that they block all incoming light. When fully closed, no light filtered into the room, and they also seemed to insulate against intense heat outside during the testing period.

Whether you plan to use these blackout curtains in your home theater or bedroom, the neutral shades will work with a range of decor styles. While the polyester material has a smooth, silky texture on the front and back, we were surprised by the slightly shiny finish to the fabric and would’ve preferred a more matte finish. That may be a matter of personal preference, though.

After six months of testing, these curtains have held up nicely, maintaining their structure and look. We love using these curtains instead of the Roman shades in a bedroom, to extend the life of the Roman shades and create more privacy in the bedroom. They blocked out the early morning sun during the summer and allowed us to experience uninterrupted sleep.

Note that the Sun Zero Oslo Blackout Curtains have a pocket header for a curtain rod, so if you were planning on hanging your curtains using grommets or clips, you’d have to change course to accommodate this option. They’re available with a 52-inch width and in various lengths ranging from 63 to 95 inches.

Dimensions: Seven options from 52 x 63 inches to 52 x 95 inches | Material: Polyester | Heading: Rod pocket |Number of Panels: 2

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What We Like

  • Extra wide single panel

  • Available in multiple colors

  • Machine-washable

  • Includes curtain pull wand

What We Don't Like

  • Doesn’t block all incoming light

For an extra-wide blackout curtain to cover a patio door, we recommend this option from Wayfair Basics. The curtain measures 84 x 100 inches and is available in over a dozen colors. Based on our testing experience, this option has a quality look and feel, and blocks approximately 70 percent of incoming light. This isn't as much as our other picks, but is plenty to darken a patio doorway and serve as a barrier from sunshine and outside noises.

This thermal curtain also helps to insulate the room against cold drafts or hot temperatures. That’s notable if you’re looking for blackout curtains for a sliding patio door, since the large panels of glass can be a significant cause of heat loss in the winter or rising temperatures in the summer.

The grommet header made hanging the large curtain panel fast and easy. The curtains pull back smoothly and drape nicely over our curtain holdbacks, which was one of our favorite features of this blackout curtain.

There is a curtain-pull wand which made pulling back the wide, 84-inch-tall curtain easier, but in our experience, the weight of the curtain caused the to be wand a slower and more cumbersome method than pulling back the curtain by hand.

Rather than hanging several individual blackout curtain panels side by side, the Wayfair Basics Blackout Patio Door Curtain Panel is a simple solution for most standard sliding doors. It blocks enough light to improve the comfort of your room and looks nice when pushed back during the day.

Dimensions: 100 x 84 inches | Material: Polyester | Heading: Grommets | Number of Panels: 1

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What We Like

  • Includes carrying case

  • Velcro tabs for adjustable curtain length

  • Variety of colors and prints to choose from

What We Don't Like

  • Gaps between suction cups allows some light to filter through

  • Must take down the curtains if daylight is desired

A set of portable blackout curtains can mean the difference between tossing and turning or enjoying a good night's sleep while traveling. The Amazon Basics Portable Travel Window Blackout Curtains are a great option, impressing us with their ability to block light, and their overall convenience.

The suction cups (which adhere best to a clean window) allow some pockets of light to pass through, but we still found them effective enough to buy one more hour of sleep for a baby—even caused us to miss the wake-up call from an alarm clock!

You do have to take the curtains down if you want to enjoy a view out the window during the day—the suction cup design means you can't push the curtains back as you would with a curtain rod. If you leave the blackout curtains in place, it seems about 90 percent of the light is blocked, based on our testing experience.

The curtain folds up into its travel bag, which is convenient for slipping it into your suitcase or backpack, but since the material is quite thick and stiff, it took some effort to refold the curtain into a size that fits well in the bag.

Finally, these curtains measure 50 inches wide and 78 inches long, but they have Velcro pieces around the edge, so you can adjust them as needed to fit windows. That’s a big plus since each place you stay will likely have different sizes of windows.They’re available in a few kid-friendly prints, and some basic solid colors if you want a simpler option.

Dimensions: 50 x 78 inches | Material: Polyester | Heading: None | Number of Panels: 1

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Final Verdict

After testing blackout curtains for effectiveness, design, quality, and value, we recommend the Sun Zero Nordic 2-pack Theater Grade Extreme 100 Percent Blackout Grommet Curtain Panel Pair as the best overall option. We loved the sleek design, light-blocking capabilities, and high-quality fabric. We also love the IKEA Majgull Blackout Curtains, our best budget pick. This basic option is value-packed and effective at both noise reduction and insulation.

How We Tested the Blackout Curtains

We tested 17 different blackout curtains (along with seven additional blackout shades) in our own homes to see how well they blocked light and held up to routine use. We hung each curtain from an existing or new curtain rod, noting how easy it was to set up, and we considered the look and feel of the materials to assess the curtain's quality.

Next, we used the curtains for two weeks to gauge their effectiveness, observing how well the material blocked light and whether the design allowed for any light to peek around the curtain. We also noted if the curtains muffled noise, offered noticeable insulation from the heat, and improved our sleep.

We evaluated the design of the curtain, including how easy it was to open and close the curtain and whether it hung from tabs, curtain rings, grommets, or rod pockets. Lastly, we reviewed our testing insights and considered the price point of each curtain to give it an overall value score.

In addition to our standard testing, we conducted long-term testing to see how the blackout curtains held up over time, checking in after six months for most products. We analyzed our testing scores with our supplemental research to compile this list of blackout curtains we believe are the best on the market.

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When Shopping for Blackout Curtains, Look For

Various Size and Color Options

You need a blackout curtain (or a pair of curtains) that will completely cover your window for maximum effectiveness. That’s why most blackout curtains come in a range of common sizes, usually anywhere from 42 to 54 inches wide and between 63 and 95 inches long. That being said, not all windows are the same size, which can pose a problem if you’re shopping for the best curtains for large windows or very small windows.

In that case, look for blackout curtains available in a range of sizes, like our best size options pick. In contrast to other options, these curtains can be ordered in widths as narrow as 37 inches or as wide as 70 inches.

An Appropriate Material

The material and construction of any type of curtain will affect its performance and aesthetics. You’ll find that most blackout curtains are polyester, but there are options for other materials, too.

  • Polyester: This synthetic fiber is a very common choice for blackout curtains. It’s durable and can be woven tightly to produce an opaque curtain that is effective at blocking light. Even curtains made from other materials almost always have a polyester lining for a blackout effect. Our best budget pick, for example, is made from polyester.
  • Cotton: For a natural fiber option, some blackout curtains are made of cotton. Many velvet curtains, like our most stylish pick, are made of this material and add a luxe look to the room. Cotton is sometimes also blended with polyester, which can lower the overall cost of the curtain.
  • Linen: Linen blackout curtains are a chic, stylish way to darken up any space in your home. While linen itself has a rather airy, loose weave, it’s paired with an opaque liner or backing material. The result is an organic-looking curtain that serves the same function as heavier, stiffer blackout curtains made of polyester. Our best linen pick is a high-quality option that feels exceptionally soft.


Compatible Hanging Fixtures

Blackout curtains typically have a header with grommets or a pocket for a curtain rod. Other header options are designed for curtain rings or clips. Here’s what to know about each curtain-hanging fixture.

  • Grommets: This style of blackout curtain has metal rings inset along the header of the curtain. A curtain rod is inserted through the rings for a modern, casual look.
  • Rod pocket: A blackout curtain with a rod pocket conceals the curtain rod inside for a simple, clean appearance. Be sure to check the width of the rod pocket so it’s compatible with the diameter of the curtain rod you plan to use.
  • Rings or Clips: Some blackout curtains have headers with loops designed for use with curtain rod rings or clips.

If you want the most versatile style of blackout curtain, look for a version with a 3-in-1 header, meaning the curtain can be hung with a rod, grommets, or clips. Our most stylish pick has this adaptable style header, with the option to install via hook belt or back tab.

Your Desired Opacity

The more opaque a curtain is, the less light will pass through it. Blackout curtains vary in opacity, with some options claiming to block 100 percent of light. Natalie Dautovich, Ph.D., environmental fellow at the National Sleep Foundation, says, “Even small sources of light can be disruptive for sleep, and some environmental light is not within an individual's control.”

An opaque blackout curtain can eliminate all light from filtering through. Other curtains are less opaque and may block about 75 to 95 percent of incoming light. Curtains that are less than 100 percent light-blocking are sometimes labeled “light-filtering.” The opacity best for your household depends on how little light you hope to see through the curtain material.

Daytime sleepers may desire a total blackout curtain to mimic nighttime conditions. If you’re concerned about oversleeping your alarm clock in the morning, however, a blackout curtain with some light transparency may be a better choice.We found our best linen pick blocked about 80 percent of incoming light. We could see the sun shining outside, but the room stayed comfortably dim enough for a daytime nap.

Interior designer Sarah Barnard says, "The tighter the fabric's weave, the less light will pass through." Triple-weave polyester blackout curtains can be very effective in blocking light. Another suggestion from Barnard is to layer curtains for a more effective blackout option, and you can push back one or two curtains during the day for a more sheer look.

"It's also important to consider the return of the curtains, as light can peek through the edges if the curtains don't cover the perimeter of the windows," she adds. In addition, consider a thick, more heavily folded fabric, since that will also create more volume and light-blocking opportunities, according to Barnard.

Standout Features

Added Room Insulation

The thick, heavy material typically used for blackout curtains can also contribute to keeping the temperature of the room more stable. Some blackout curtains are designated as thermal curtains. Usually, these curtains have three layers of material, rather than just a triple weave of fibers that includes a black fiber for room-darkening.

The thicker, heavier material of a thermal curtain helps to insulate the room and block against cold air from outside. In addition, the blackout liner keeps the sun’s rays from entering the room and causing temperatures to rise during the hot summer months.

Our best for home theater option, for example, are described as thermal curtains; in our experience, we found that the curtains did seem to help the room stay cooler in the face of 90-degree temperatures outside. So if you're looking for a way to reduce how often or long you need to run your bedroom's fan or air conditioner, a blackout curtain might help.

Outside Noise Reduction

Blackout curtains aren’t just good for blocking out light. They can also help create quieter surroundings in your room by muffling noise from the street or backyard."Some blackout curtains can help dampen noise, but they will not fully soundproof a room," notes Bernard. "Curtains can help to interrupt sound traveling into the space, with thicker, layered curtains creating more opportunities to minimize noise."

If noise reduction is a priority, you should shop for heavy, three-layer blackout curtains that can better absorb incoming sound (you might also want to give a white noise machine a go as well!).

FAQ

  • What is the best material for a blackout curtain?

    Polyester is considered one of the best materials for a blackout curtain. This synthetic fiber is durable, affordable, and often machine washable. That being said, not all blackout curtains are machine washable because of the thick, heavy nature of the curtain.You might have to clean your curtains in another way if they won't fit in your washer or aren't recommended for machine-washing on the care label.

  • Do blackout curtains make a room hotter or cooler?

    Blackout curtains can accomplish both since the thick material can assist in regulating the temperature of a room. "In the hotter months, they can help block out the sun, helping maintain cooler temperatures," says Bernard. To maximize the effect, she suggests that you keep the curtains closed during the warmest hours of the day. When temperatures are colder outside, "blackout curtains can reduce drafts from windows and insulate the space, helping to trap heat," adds Bernard.

Why Trust The Spruce?

This article was written by Bianca Pineda, a commerce writer specializing in bedding, bath, and home decor at The Spruce. Pineda uses blackout curtains daily in her NYC apartment, as they offer privacy, noise reduction, and light blocking. They're a lifesaver for summer mornings when she wants to sleep in as the sun comes up earlier.

Our Experts:

  • Natalie Dautovich, Ph.D., environmental fellow at National Sleep Foundation
  • Sarah Barnard, interior designer
  • Erica Puisis, freelance writer for The Spruce

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We Tested the Best Blackout Curtains–Our Picks Block Light and Help You Sleep (2024)

FAQs

Which brand is good for blackout curtains? ›

After testing blackout curtains for effectiveness, design, quality, and value, we recommend the Sun Zero Nordic 2-pack Theater Grade Extreme 100 Percent Blackout Grommet Curtain Panel Pair as the best overall option. We loved the sleek design, light-blocking capabilities, and high-quality fabric.

Do blackout curtains help you sleep? ›

Blackout curtains prevent light from disrupting the creation of melatonin, allowing you to fall asleep faster and keep snoozing longer. Across the globe, many people use blackout curtains to aid sleep. A survey of Norwegian adults found that 63.3% of respondents use blackout curtains.

What are the side effects of blackout curtains? ›

This can happen with blackout curtains, especially those made from synthetic materials like polyester or with a foam backing. Prolonged exposure to some VOCs can lead to health issues, such as respiratory problems, headaches, or allergic reactions.

Do blackout curtains block 100% of light? ›

Blackout curtains often refer to drapes that are made of a double-lined, tightly woven fabric. Blackout curtains are designed to block light completely.

What works better than blackout curtains? ›

Whether you go with blackout curtains or blackout window film, you will experience the difference right away. Remember, for total light blocking, we recommend window film rather than curtains for complete coverage.

What should I look for when buying blackout curtains? ›

Blackout curtains usually require some solid and heavy duty fabric that doesn't let light rays penetrate through. If you choose for example drapes that are made with lighter or semi-transparent fabrics, they may offer some light blocking protection but as high enough as more quality and thick materials.

What are the best curtains for sleep? ›

Blackout curtains are renowned for their ability to create a dark, tranquil environment ideal for restful sleep. Whether you're a light sleeper or simply value a peaceful night's rest, these curtains are designed to block up to 99% of incoming light.

What color curtain is best for sleep? ›

ColorEmotional ImpactFunctionality
Light BlueSerenity, ExpansivenessEnhances Peaceful Sleep
GreenCalming, RejuvenatingInduces Tranquility
Soft LavenderRelaxing, Stress-ReducingReduces Anxiety and Stress
Beige/CreamWarm, InvitingPromotes a Calm Atmosphere
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Jan 18, 2024

Are blackout curtains worth it? ›

Blackout curtains, shades and blinds all reduce energy costs by cutting the amount of sunlight and UV rays that enter the room. In addition, they protect furniture and floors from sun damage and fading, which makes these high-cost products more durable.

What are the disadvantages of black curtains? ›

The cons are they're heavy, difficult to maneuver, and clean. They collect dust. The pros of blackout curtains are that they can help block out light and noise, making it easier to fall asleep and stay asleep. The cons are that they can make a room too dark or hot, potentially disrupting your sleep schedule.

Are black curtains a good idea? ›

Dark curtain benefits

Strike a balance between relaxing and romantic. Dark curtains lend a sense of drama, contrast and elegance to a room and, when used right, can be very inviting. Dark curtains don't show dirt and dust like light coloured curtains will so a good choice for high traffic areas (if the size is right).

Can people see you through blackout curtains? ›

See-Through Window Treatments

If you are concerned about privacy at night time, there are plenty of ways to reduce visibility from the outside. For example, blackout drapes offer complete privacy and can be drawn over windows at night.

What color is best for blackout curtains? ›

Blackout fabrics in black are perfect for those who want a complete absorption of visible light. For those wanting to have the colours of the deep ocean, you can choose to buy blackout fabrics in deep or dark blue colour. Dark blue is very much close to black, which makes it also as efficient in blocking out light.

Should blackout curtains be black or white? ›

For example, a MOONDREAM dim-out curtain or blackout curtain in light colors such as eggshell or white will block out 90% to 95% of the light. To block out 100% of the light you better choose either a blackout curtain in a dark color or a coated fabric curtain (in any color).

What fabric is best for blackout curtains? ›

The most effective blackout fabrics

Most blackout curtain fabrics use polyester as a solo material or combine it with other fabrics. Polyester is a synthetic fabric that boasts affordability, durability, and superior light-blocking qualities.

What is the best blackout fabric for windows? ›

Polyester material is common and efficient at blocking out the light, but vinyl (the material our pick for the best roller-style blackout shade is made from) is going to be much better for providing a cooling effect on your room as well.

Which curtain heading is best for blackout? ›

Deep pencil pleat (6”)

When fitted close to the wall on a track or from floor to ceiling, these curtains also offer a great blackout effect. Due to the fabric being ruched against itself, curtains with pencil pleat headings will take up more space than other headings when stacked back.

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