The fabric provided is extremely effective at blocking light. The setup instructions are simple and intuitive, though I'm guessing I skipped over the part about letting the adhesive set before hanging the heavy fabric! They provide a little extra if you do make a mistake. Overall it's made sleep during short summer nights a lot easier!
Total Blackout Curtain Kit
$129.00
$129.01
$129.00
$129.01
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$139.00
$139.01
$139.00
$149.00
$149.01
$149.00
$129.00
$129.01
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Best Blackout Curtains 2026
- Total Darkness: Blocks 100% light.
- Keeps Rooms Cool: Blocks heat and can work around your window AC unit.
- Portable & Versatile: Use anywhere.
- Tool-Free Install: Damage-free setup.
- Adaptable Fit: Adjusts to a range of window sizes.
- OEKO-TEX Certified: Safe, non-toxic fabric. Free from formaldehyde, PFAS, phthalates, and other harmful chemicals.
✨We’re so confident you’ll love them, we offer 30-day returns after delivery!
Length
57"
78"
91"
Color
Midnight Blue
Black
Length
Color
Limited Restock — Sale Ends In:
OtterSpace is a complete sleep system—engineered for 100% darkness with no tools and no damage.
Each Kit (Panel) Includes:
- 1X Blackout Curtain Panel: Crafted from high-quality woven fabric, this essential component of the kit comes in an elegant Midnight Blue or Black. The fabric is OEKO-TEX Standard 100 certified, meeting strict standards for safety and environmental impact. Free from Formaldehyde, PFAS, phthalates, and other harmful chemicals.
- 4X Magnetic Blackout Blocks™ These patented Blackout Blocks attach to the curtain panel, enhancing its blackout capabilities by effectively sealing off light leaks.
- 4X Window Blackout Plates: These Blackout Plates adhere to your window frame using non-damaging adhesive, supporting the magnetic blocks and ensuring easy installation.
- 6X Non-damaging, removable adhesive
- 14X Curtain Rings (use is optional): Provided if you prefer to hang your blackout liner using a curtain rod, offering additional flexibility in how you choose to install them.
Our blackout curtain baselayer is versatile and can be used both at home and as portable blackout curtains for on-the-go light-blocking needs.
Each panel measures 50" wide
Exclusive OtterSpace Fabric – Made from uncoated, high-quality fabric—free from formaldehyde, PFAS, phthalates, acrylic, PVC, PU, and coatings—for a naturally soft, 100% blackout solution.
Proprietary Woven Technology – Our unique weaving method is patented and naturally blocks light without sacrificing softness or flexibility.
Incredibly Soft, Never Stiff – Enjoy a curtain that’s luxuriously soft to the touch and maintains a natural drape.
OEKO-TEX® Standard 100 certified, meeting strict standards for safety including formaldehyde, PFAS, phthalates, and other harmful chemicals.
OEKO-TEX® Certification Number: BJ025 232323
Use Your HSA or FSA to Pay for OtterSpace
You can now purchase OtterSpace blackout curtain products using your Health Savings Account (HSA) or Flexible Spending Account (FSA) through our payment partner, Flex.
How It Works
- Add your OtterSpace products to your cart
- Choose “Pay with HSA/FSA” at checkout
- You’ll be securely redirected to Flex to finish your purchase
- Complete a quick eligibility check.
- Pay using your HSA/FSA card, or use a personal card and request reimbursement
Good to Know
- A prescription isn’t required
- Keep your receipt for your records
- Eligibility and coverage depend on your individual plan
Add an outer curtain
Outer Curtain | Bloom
From $79.00
Outer Curtain | Cloud White
From $79.00
Outer Curtain | Dinos
From $79.00
Outer Curtain | Midnight
From $79.00
Outer Curtain | Space Otters
From $79.00
OtterSpace Vs. Others
Others
OtterSpace
Complete Darkness
OtterSpace
Standard "Blackout" Shades/Curtains
Blocks 100% of light
Prevents light leaks around edges
Patented Technology
Tool-free installation
Adjustable to fit a range of window sizes
Portable for travel or moving
High-quality, Oeko-Tex certified materials
30-Day Returns
Installing Blackout Blocks™
Customer Reviews
Overall rating: 5.0 / 5 from 224 reviews.
Very effective. Easy to use! I'm so glad I found this product. It’s the only product I’ve found that allows me to effectively blackout the nursery while also having natural light during the day. We already had blackout curtains installed but the light from outside seeped through the top and sides. I used the OtterSpace with the curtains I already had in place. I love that I can easily open and close the curtains with one hand because the magnets are so easy to use.
Bought this for my daughter’s window and it’s fantastic. Total blackout! Easy to install and can be adjusted as needed. Highly recommend for these tiny humans who need total darkness to sleep past 5:30am!
These curtains really work. The room is totally dark! We have moved to a new place and it was hard to sleep due to the very bright light coming from a building parking lot right across our window. So glad we can sleep well again. Thank you very much!
These are perfect! We have been struggling with light leaks and these cover all the bases. I tested them out with my newborns room and now I’m going to switch out my 3 year olds and put some in her room! Can't recommend enough!
The solution you've been looking for! I've tried it all and moved a bunch- THIS is the solution you're looking for. It works as advertised, set-up was easy! The blackout blocks even worked with a cheap Walmart curtain but the otterspace black out curtain functions much better. I'll never be without this!
Great for toddler's room. Great blackout coverage even during daytime naps, and my son loves the space otter outer curtains!
The best blackout solution. For my oldest kid, I never found a blackout solution that really worked. I just had a new baby and came across these curtains on Reddit. I thought they were a bit pricey, but decided to give it a try. I'm glad I did, they work so well! My husband installed them and it wasn't so quick, but now that they are up, it's so easy to open and close them. Very happy with this purchase!
These are the best black out curtains! We live in California so the sun is always out and this curtain did a great job at blocking everything out during my baby’s nap time and preventing him from waking up too early in the morning
Pure blackout. We have blackout cellular blinds in our nursery, but light was leaking out of the edges. I ordered the blackout curtains since it served like I could install them with magnetic blocks underneath the blinds. It was easy to install and worked wonders. I noticed a difference in our baby's ability to put himself back to sleep during sleep transitions during daytime naps and overnight. I highly recommend these curtains.
Best decision ever! We've used the cheap blackout shades from Amazon but they were not worth it trying to fix them when they'd come off and we'd have to buy additional stickers to get them to block out light totally. These were a GAME CHANGER! Pitch black room and easy to install and take off to open the windows. 10/10!
Wow! We bought 2 panels for our room because our 4 month old has hit his sleep regression. Our room is so dark I don't want to transfer the panels to the nursery when he switches rooms! They are excellent!
Lifesaver. We live in the Pacific Northwest (Seattle) so during the winter months we use SAD lamps to battle the Big Dark, but when spring rolls around the light returns with a vengeance. It's fantastic and absolutely no complaints from me, but we just welcomed a baby so he needs his room quiet and dark for naps and regulating his circadian rhythm. These OtterSpace panels are amazing at shutting out the light when needed, and they have the added benefit of tamping down street noise as well as keeping the room cooler when the sun is blazing outside. Thanks so much from one Seattleite mom to another!
Perfect darkness. Not even the tiniest sliver of light in the brightest room can be seen with these installed! Just what we needed!
Love this! We have been using these blackout curtains for the last three years in my five-year-old's room. Now it's time for my three-year-old to get a big boy room, and we are so excited to grab some more for his space. They really do shut out all of the light and are so easy to install!
Truly Blackout. Have a large Window in master bathroom that allows so much light but now that we are cosleeping and getting closer to summer, it’s too much light and this truly makes a difference.
game changer! I can't believe these aren't more popular! I tried a few DIY solutions to keep the morning sun from coming in around and above our regular blackout curtains but nothing worked as well as I'd like. This, however, was so easy and works perfectly! I wish I'd found them sooner.
Perfectly Dark. I was very happy with my purchase. The blackout curtains are nice and thick and with the magnets no light leaks through. The outer curtains were also much better than expected, very thick and of good quality. Will definitely be ordering more!
Loving this product, and customer service. Very easy to install and quick to take on and off each day. I ended up needing to exchange lengths and Rosemary was extremely helpful working on the backend to make this happen for me! Have had a wonderful customer service experience, and of course blackout rooms for the kids! Highly recommend.
Total Blackout Curtain Kit
Game Changer. Super excited in finally installing these curtains and blocks! The blocks are super helpful in holding down the black out curtains! It's so dark in the room now that we need our lights on in order to see! :)
Easy to install! 100% Blackout!
Total Blackout for my college-aged son's room. Easy installation and portable. Love.
They work! TLDR: These curtains work. Buy them! As a parent of an infant, I know how crucial quality naps are for both baby and mom! Starting at three months, we struggled with daytime naps, but these curtains have been a game-changer! like the ease of engaging and disengaging the magnets for open windows during playtime and closed during nap time. There is no sound compared to velcro options. They don't slip compared to suction cup options. There is no light that bleeds from above, below or on the sides. I'd even recommend these for those needing to sleep during the day or who wake up easily with the sunrise.
This actually works!! I was skeptical from the instagram ads at first, but was desperate for a solution that actually worked. The use of magnets is so simple but I haven’t seen it successfully done before this product. I love that I can have the curtains open when my baby is awake, and then close it for nap time easily.
Amazing product and easy shopping experience.
These worked great to blackout for window. I was looking for a solution that would allow us to be able to get sunlight into my kids room during the day and blackout for naps/night. Customer service was also very responsive.
Pretty darn good. purchased to help blackout our nursery and after a quick an easy install- seem to do the job. The only thing is I think I'll add extra magnets to use in the middle as our windows are kinda large
Truly the best. I’ve tried every blackout solution. Suction to the window, hanging curtains, taping up the windows. Nothing compares to this. So easy to set up and you don’t even need an outer curtain to block the light.
These guys are great!! I received a one error in my order they fixed it asap!!
The customer service leading up to our purchase was friendly and helpful. As advertised, there was no odor in the material, the magnets were easy to use and total darkness was achieved . We are very pleased with our Otterspace purchase and highly recommend this product for anyone interested in buying blackout curtains.
Love these black out l curtains! The magnetic feature ensures you don’t have light leaks - just be sure to measure your window accurately
Struggled with making the nursery dark for sleep training. And these were incredible!
Thick and great quality!
These curtains are truly fabulous. We tried everything and these are by far the best! Just purchased another pair for our room and will for our new baby coming soon!
love these!
These worked great for when the grandkids come to visit!
We absolutely LOVE our otterspace blackout curtains! We bought with our first son while sleep training as the light really threw him off and I was sick of buying cheap crappy options. This was a GAME CHANGER and we’re now buying our second set for our new babe for his nursery. Can’t thank them enough for this amazing product. Wish I could shout it from the rooftops! Worth every penny and great customer service on top of everything else. 10/10 recommend.
Works great! Toddler started sleeping so much better after we installed these, she can go past dawn now. There is a little light leak from the top so we are working with company to get extra blocks (they said there's also a way to fix the leak with the existing blocks but I'd rather get a few more since the window is really wide). Really high quality. Even my husband who was a skeptic commented on how easy these are to use. Installing was a pain, but that is probably also because I was extremely sleep deprived due to toddler sleep regression (which is now way better thanks to these + adding a red night light because she's scared of the dark now?)
It really works! I am LOVING these. I've spent more money than I care to admit on different blackout curtains, and there was always leaks. These are pure magic and now my baby sleeps like a dream :) Thank you for delivering on your promise of true blackout curtains :)
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