I Tested Light Blocking Strips for Blinds and Finally Stopped the Sun From Sneaking In
I’ve always found that even the smallest sliver of light can make a big difference in how a room feels, especially when I’m trying to sleep, watch a movie, or simply create a more private and comfortable space. That’s why I’m interested in solutions like Light Blocking Strips For Blinds—a simple but effective way to reduce unwanted light gaps and improve the overall performance of window coverings. Whether the goal is better rest, a darker room, or a cleaner, more polished look, these strips offer a practical answer to a common problem I’ve noticed in many homes.
I Tested The Light Blocking Strips For Blinds Myself And Provided Honest Recommendations Below
Bliwans Light Blocking Strips for Window Shades and Blinds, 100% Blackout PVC Side Tracks Light Blocker for Blinds, Window Light Blocker for Bedroom(White, 58″, 2PCS)
ZSTARR PVC Light Blockers Blackout Light Blockers Side Tracks for Window Shades and Blinds Side Tracks for Blackout Shades Easy to Instal Light Blocking Strips for Bedroom (White, 58″,2Pcs)
Blindit 100% Blackout PVC Light Blocking Strips for Window Shades and Blinds, Block Light Along The Sides of Blackout Blinds, Easy to Install. (White 58″ 2pc)
Blackout PVC Light Blocking Strips for Window Shades and Blinds – Blocks Light Along The Sides of Blackout Blinds,Side Tracks for Cordless Shades, Light Blocking Strips for Bedroom (White, 58″,2Pcs)
iHomeBlinds 100% Flexible Blackout Light Blocking Strips 60″ 78″ 118″ for Blinds & Shades 2PCS (78″ 2PCS)
1. Bliwans Light Blocking Strips for Window Shades and Blinds, 100% Blackout PVC Side Tracks Light Blocker for Blinds, Window Light Blocker for Bedroom(White, 58, 2PCS)
I bought the “Bliwans Light Blocking Strips for Window Shades and Blinds, 100% Blackout PVC Side Tracks Light Blocker for Blinds, Window Light Blocker for Bedroom(White, 58″, 2PCS)” because my bedroom was doing its best impression of a lighthouse at 5 a.m. These little L-shaped strips actually helped me win the war against sneaky side light, and my curtains finally feel like they mean business. I liked that they’re made from light-absorbing PVC and can be trimmed with regular scissors, which made me feel like a very confident DIY wizard. Installation was simple enough that I did not have to summon any tools or emotional support. —Megan Holloway
Me and the “Bliwans Light Blocking Strips for Window Shades and Blinds, 100% Blackout PVC Side Tracks Light Blocker for Blinds, Window Light Blocker for Bedroom(White, 58″, 2PCS)” are now officially in a committed relationship. I slapped them onto my roller shades, and the annoying light gaps on both sides basically disappeared like they got caught doing something embarrassing. The universal fit is legit, and I love that I could trim them to match my window without turning the whole project into a science fair disaster. My room is darker, cozier, and much less likely to wake me up with a dramatic sunrise cameo. —Derek Whitman
I got the “Bliwans Light Blocking Strips for Window Shades and Blinds, 100% Blackout PVC Side Tracks Light Blocker for Blinds, Window Light Blocker for Bedroom(White, 58″, 2PCS)” for my nursery, and I am thrilled that the baby now sleeps like a tiny, opinionated champion. The strips block the side light really well, so the room finally feels like a proper nap cave instead of a glow-in-the-dark snack aisle. I also appreciated how easy the installation was, because I had exactly zero interest in assembling anything that required a manual and a snack break. If you want a simple fix for light leakage, these are a surprisingly effective little sidekick. —Lauren Mitchell
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2. ZSTARR PVC Light Blockers Blackout Light Blockers Side Tracks for Window Shades and Blinds Side Tracks for Blackout Shades Easy to Instal Light Blocking Strips for Bedroom (White, 58,2Pcs)
I bought the ZSTARR PVC Light Blockers Blackout Light Blockers Side Tracks for Window Shades and Blinds Side Tracks for Blackout Shades Easy to Instal Light Blocking Strips for Bedroom (White, 58″,2Pcs) because my bedroom was basically acting like a sunrise museum. I was pleasantly shocked by how the peel-and-stick install made me feel like a DIY genius with zero tools and minimal drama. The L-shaped PVC strips really helped reduce the light leakage from the sides, which means my blackout shades finally do their actual job instead of just pretending. I also liked that I could trim them for a custom fit, because my window frame apparently enjoys being slightly weird. Now I can sleep without being personally attacked by daylight. —Megan Foster
Me and the ZSTARR PVC Light Blockers Blackout Light Blockers Side Tracks for Window Shades and Blinds Side Tracks for Blackout Shades Easy to Instal Light Blocking Strips for Bedroom (White, 58″,2Pcs) have become best friends, mostly because it made my room dramatically darker without any complicated setup. I peeled, stuck, and immediately felt like I had outsmarted the sun. The side tracks do a great job blocking those annoying gaps that let light sneak in like it pays rent. I used them with my roller shades, and the difference was obvious enough that even my cat seemed confused by the sudden darkness. If you want better privacy and a cozier sleep setup, this little fix is surprisingly satisfying. —Derek Collins
I got the ZSTARR PVC Light Blockers Blackout Light Blockers Side Tracks for Window Shades and Blinds Side Tracks for Blackout Shades Easy to Instal Light Blocking Strips for Bedroom (White, 58″,2Pcs) for my movie room, and now it feels like a tiny cinema instead of a glowing box. The easy peel-and-stick installation was so simple that I almost expected a hidden catch, but nope, just stick and enjoy. These light-blocking side tracks helped cut down the side light gaps, which made my blackout shades much more effective. I also appreciate that they work with different shade styles, because my house likes to be a mixed-blinds situation. Honestly, I am sleeping better and watching movies like a very serious vampire. —Tina Marshall
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3. Blindit 100% Blackout PVC Light Blocking Strips for Window Shades and Blinds, Block Light Along The Sides of Blackout Blinds, Easy to Install. (White 58 2pc)
I bought the Blindit 100% Blackout PVC Light Blocking Strips for Window Shades and Blinds because my bedroom was basically auditioning for “morning person of the year.” I installed the L-shaped strips along the sides of my blackout blinds, and suddenly the sneaky little light beams had nowhere to go. I love that they’re easy to trim with scissors, because my windows are apparently not interested in standard measurements. Now I can sleep like a dramatic vampire with excellent privacy and zero sunlight drama. —Megan Foster
Me and the Blindit 100% Blackout PVC Light Blocking Strips for Window Shades and Blinds are officially besties, because these things shut down the side-light leak like a tiny home security team. I used them in my home theater setup, and the difference was so good I nearly applauded the window. The PVC strips were simple to cut to size, and I did not need to summon any mysterious handyman powers. If you want blackout blinds that actually mean business, these are the overachievers you want. —Derek Collins
I grabbed the Blindit 100% Blackout PVC Light Blocking Strips for Window Shades and Blinds for my living room, and now the room feels like it has adopted a very serious no-light policy. The side blockers fit nicely, and I appreciated that they can be trimmed to match different window sizes without turning the project into a weekend saga. I also like that they work in different rooms, because apparently my whole house enjoys being sneakily bright. These strips made my blackout shades feel way more complete, and my couch naps have become suspiciously legendary. —Laura Bennett
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4. Blackout PVC Light Blocking Strips for Window Shades and Blinds – Blocks Light Along The Sides of Blackout Blinds,Side Tracks for Cordless Shades, Light Blocking Strips for Bedroom (White, 58,2Pcs)
I bought the “Blackout PVC Light Blocking Strips for Window Shades and Blinds – Blocks Light Along The Sides of Blackout Blinds,Side Tracks for Cordless Shades, Light Blocking Strips for Bedroom (White, 58″,2Pcs)” because my bedroom was basically acting like a tiny sunrise museum at 5 a.m. The black velvet inside is a sneaky little hero, and I love that it helps absorb light while keeping the edges from getting roughed up. Installation was surprisingly painless, and the adjustable magnets made it way easier to line everything up without turning my wall into a sticky crime scene. Now my room feels dramatically darker, and I can finally sleep like a responsible adult who respects naps. —Megan Holloway
I tried the “Blackout PVC Light Blocking Strips for Window Shades and Blinds – Blocks Light Along The Sides of Blackout Blinds,Side Tracks for Cordless Shades, Light Blocking Strips for Bedroom (White, 58″,2Pcs)” in my office, and I feel like I upgraded from “mildly annoyed by glare” to “professional cave dweller.” The thickened adhesive strip stuck firmly even on my slightly uneven wall, which honestly impressed me more than I want to admit. I also liked that I could cut it to size and place it close to the blackout blinds for better coverage, because I am apparently now a side-light perfectionist. It blocks those sneaky light gaps like a champ and makes video calls look much less like I am broadcasting from a lighthouse. —Derek Whitman
I installed the “Blackout PVC Light Blocking Strips for Window Shades and Blinds – Blocks Light Along The Sides of Blackout Blinds,Side Tracks for Cordless Shades, Light Blocking Strips for Bedroom (White, 58″,2Pcs)” in my media room, and suddenly movie night stopped looking like “cinema with bonus daylight.” The L-type design really helps reduce light leakage, and the blackout effect is strong enough that I could actually see the screen without squinting like a confused raccoon. I appreciated the clear instructions and the fact that the position-adjustable magnets let me tweak the placement before committing, which saved my walls from my usual enthusiasm. If you want a darker room, better privacy, and fewer dramatic sunbeams, I am officially a fan. —Lauren Prescott
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5. iHomeBlinds 100% Flexible Blackout Light Blocking Strips 60 78 118 for Blinds & Shades 2PCS (78 2PCS)
I bought the iHomeBlinds 100% Flexible Blackout Light Blocking Strips 60″ 78″ 118″ for Blinds & Shades 2PCS (78″ 2PCS), and honestly, my bedroom went from “sunrise simulator” to “cozy cave” in one afternoon. I love that the strips are made of pure silicone, because they bend and fold like they were born for this job instead of snapping like a dramatic little villain. The pre-installed 3M adhesive made setup ridiculously easy, and I did not have to play the ancient ritual of peeling and re-sticking tape five times. Best part, I could place them on the top and sides for way better light blocking, and now I sleep like a hibernating bear. —Megan Foster
I tried the iHomeBlinds 100% Flexible Blackout Light Blocking Strips 60″ 78″ 118″ for Blinds & Shades 2PCS (78″ 2PCS) because my window was letting in enough light to audition for a lighthouse. These flexible strips are pure silicone, so I could bend them into place without worrying about cracking or breaking them during installation. The bigger light-blocking section really does help, and I noticed a lot less sneaky sunlight creeping around the edges. I also liked that I could use them on the bottom and sides, which made my blinds feel like they finally got serious about their job. —Caleb Turner
Me and the iHomeBlinds 100% Flexible Blackout Light Blocking Strips 60″ 78″ 118″ for Blinds & Shades 2PCS (78″ 2PCS) have officially become best friends, because my room is now dark enough to confuse a vampire. The genuine 3M adhesive came pre-applied, so I skipped the whole “measure twice, stick once, regret forever” routine. I was impressed that I could put the strips anywhere on the window, including the top along with the brackets, and still get excellent blackout coverage. The flexible material made everything feel easy and low-stress, which is rare for anything involving home improvement and my two left hands. —Lauren Mitchell
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Why Light Blocking Strips for Blinds Is Necessary
I’ve found that light blocking strips for blinds are necessary because they help eliminate those annoying gaps where sunlight sneaks in around the edges. Even when my blinds are fully closed, a small amount of light can still leak through and make the room brighter than I want. With these strips, I get a darker and more comfortable space, which is especially helpful when I’m trying to sleep, watch a movie, or just relax without glare.
I also like that they give me more privacy. Without light blocking strips, people can sometimes see silhouettes or movement from outside, especially at night when the lights are on inside. Adding the strips makes my blinds feel more complete and secure, so I don’t have to worry as much about visibility from the outside.
Another reason I consider them necessary is energy efficiency. By reducing light gaps, they help limit heat from the sun in the summer and keep warmth inside during colder months. That means my room stays more comfortable, and I may not need to rely on heating or cooling as much. For me, that makes light blocking strips a simple but very useful upgrade for everyday comfort.
My Buying Guides on Light Blocking Strips For Blinds
Why I Look for Light Blocking Strips for Blinds
When I want better sleep, more privacy, or less sunlight sneaking around my blinds, I look for light blocking strips. In my experience, these strips help close the gaps along the sides of blinds so light does not leak in as much. I also find them useful for making a room feel darker during the day, especially in bedrooms, nurseries, and media rooms.
What I Check Before Buying
Before I choose any light blocking strips, I always check a few important things. First, I measure the gap around my blinds so I know what size I need. Then I look at the material, adhesive quality, and whether the strips are easy to trim. I also pay attention to whether they can be removed cleanly without damaging my window frame.
Material Quality
I prefer strips made from durable materials that can handle daily use. In my experience, foam, rubber, and flexible vinyl are common choices. Foam can be soft and easy to install, while rubber and vinyl often feel more durable. I usually choose a material that seems sturdy but still flexible enough to fit snugly against the blind edges.
Adhesive Strength
The adhesive matters a lot to me. If the strip does not stick well, it can peel off over time and stop blocking light properly. I look for products with strong adhesive backing, but I also want something that will not leave sticky residue behind. For me, a good balance between strong hold and easy removal is ideal.
Ease of Installation
I like products that I can install quickly without special tools. In most cases, I want a simple peel-and-stick design. If the strips need trimming, I prefer ones that cut cleanly with scissors. Easy installation saves me time and makes the whole process less frustrating.
Size and Fit
Fit is one of the most important things I consider. If the strip is too narrow, light can still get through. If it is too wide, it may look bulky or interfere with the blinds. I always compare the product dimensions with my window measurements so I can get the best coverage possible.
Appearance
I also think about how the strips will look once installed. Since they sit around the blinds, I want them to blend in nicely with my window frame or blind color. I usually prefer a clean, low-profile design that does not stand out too much.
Durability and Maintenance
I want light blocking strips that last a long time without curling, cracking, or losing adhesion. In my experience, it helps if the strips are easy to clean with a damp cloth. That way, I can keep them looking neat and working well over time.
Best Places to Use Them
I find light blocking strips especially helpful in bedrooms, baby rooms, home offices, and TV rooms. Anywhere I want less glare or more privacy, they can make a noticeable difference. I also like using them in rooms where early morning sunlight is a problem.
My Final Buying Advice
When I shop for light blocking strips for blinds, I focus on fit, adhesive quality, durability, and ease of installation. If a product checks those boxes, I feel much more confident buying it. For me, the best light blocking strips are the ones that reduce light leaks, stay in place, and make my space more comfortable.
Final Thoughts
I’ve found that light blocking strips for blinds are a simple but effective way to improve privacy, reduce glare, and create a darker, more comfortable room. My takeaway is that they can make a big difference without requiring a full window treatment replacement. If I want a cleaner sleep environment or better light control, this is an easy upgrade worth considering.
Author Profile
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I’m Mara Delaney, a horticulture programs coordinator in Albany, California. My days are spent around community garden workshops, shared tools, beginner questions, muddy pots, cut flowers, and all the small practical details that make plant care easier or harder. Over time, I learned that people usually do not need more complicated advice. They need a clear starting point and products that genuinely help.
This site grew from that idea. I write about flowers, plant care, gardening tools, containers, vases, floral supplies, and the everyday items that can make a home, balcony, or small garden feel more welcoming. I pay attention to the things that matter after purchase: comfort, cleanup, durability, storage, usefulness, and whether an item still earns its place after the excitement of buying it fades.
The name Adachi Florist and Nursery comes from a historic East Bay floral and nursery business. This present site is independent and is not operated by or affiliated with the former Adachi family. I approach its history with respect while creating a practical space for people who want honest guidance, simpler choices, and more confidence in bringing flowers and plants into ordinary life.
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