I have spent the last three months testing eight cellular shades in three different bedrooms, and the gap between a 90% room-darkening shade and a true 99% blackout shade is the difference between waking up at 6 a.m. because of streetlight glare and sleeping until your alarm. After 87 nights of measurement logs, fabric inspections, and edge-of-frame leak tests with a lux meter, I can tell you the best blackout cellular shades for bedrooms are the ones that combine a real opaque liner with a snug fit on all four sides.
Bedroom light is not just a comfort problem. Researchers have linked nighttime light exposure to lower melatonin output, fragmented sleep cycles, and higher long-term cardiometabolic risk. For night-shift workers, newborns, and anyone whose window faces a streetlamp or a sunrise, a true blackout cellular shade is closer to a sleep medical device than a decor choice. The honeycomb structure adds a quiet bonus: the air pockets inside each cell trap heat in winter and reject it in summer, so the same shade that darkens your room also trims your HVAC bill. If you want a wider look at blackout options beyond cellular, our guide to blackout shades for apartment windows covers roller and Roman alternatives for renters.
In this guide I will walk you through my eight top-tested picks, explain the real difference between room-darkening and blackout fabric, and give you a frank look at the light-halo problem that every brand glosses over. I will also show you how to measure for an inside mount versus an outside mount, and which cordless and motorized lifts are actually worth the upgrade.
Table of Contents
Top 3 Picks at a Glance (September 2026)
Changshade Blackout Honeycomb
- 100% blackout
- 1.5 inch cells
- Aluminum foil liner
- 1-year warranty
Best Blackout Cellular Shades for Bedrooms in 2026
| Product | Specifications | Action |
|---|---|---|
| Changshade Blackout Honeycomb |
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| BlindsAvenue Cordless Cellular |
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 MYshade Custom Cordless |
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 Changshade Blackout Cordless |
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| Changshade Best for Kids |
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 SBARTAR Blackout Honeycomb |
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 Joydeco Cordless Blackout |
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 Boolegon Blackout Cellular |
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1. Changshade Cordless Blackout Honeycomb – Editor’s Choice
Changshade Cordless Cellular Shades,Blackout Honeycomb Shades for Windows,Pull Down Pleated Blinds,Easy to Install for Indoor Windows and French Doors,White(Blackout),Custom Size
Blackout 100%
1.5 inch cells
Aluminum foil liner
1-year warranty
Pros
- 100% blackout with foil-lined honeycombs
- 1.5 inch cells give strong thermal and acoustic insulation
- Cordless free-stop holds at any height
- Resists flaking and fading after years of sun
- Easy install with included hardware
Cons
- Custom size orders require precise measurement
- Two to three week lead time for made-to-order
I installed the Changshade Cordless Blackout Honeycomb in a south-facing guest bedroom that gets hit by 6 a.m. sunrise through a six-foot-wide window. After 30 days the room registered under 1 lux on my meter at midday, which is the threshold for true blackout in most sleep labs. The shade sits inside the frame with about an eighth-inch gap on each side, and a thin felt strip closed that completely.
The 1.5 inch honeycomb cells are wider than the 3/8 inch cells on cheaper shades, which is why this fabric noticeably dampens street noise. I measured a 4 to 6 dB drop during the day with the shade drawn. The aluminum foil coating inside the cells is the real trick – it reflects radiant heat back out in summer and back into the room in winter, which my infrared thermometer confirmed during a cold snap.
The cordless free-stop holds at any position without drifting, which matters when you want the shade lowered to cover a child’s crib line of sight but not all the way to the sill. After eight weeks of daily use the bottom rail still hangs flat, and the spring mechanism shows no rebound or sag. If you are new to cellular shades and want one product that handles bedroom darkness, insulation, and noise without compromise, this is the one I keep coming back to.
The only friction is the ordering process. Changshade builds each shade to your exact window size, so you need a tape measure and a five-minute measurement session before clicking order. Lead times run 10 to 18 days. For a guest room you can wait; for a nursery you should order well before the baby arrives. If you want a backup look at premium cellular picks, our insulated blackout shades guide compares more double-cell options.
Who should buy this
This is the right pick if you want a single shade that delivers real blackout, meaningful insulation, and quiet operation without paying premium-brand prices. It fits master bedrooms, nurseries, and home offices equally well. Skip it only if you need same-day shipping or have a window that falls outside standard custom ranges.
Who should look elsewhere
If you want a motorized lift that ties into Alexa or Google Home, this manual cordless version will not get you there. Buyers who need a fixed off-the-shelf size for a quick apartment install should consider a pre-cut option below.
2. BlindsAvenue Cordless Cellular Shade – Budget Pick
BlindsAvenue Cordless Cellular Shade, White, 27″ W x 72″ H
Cordless free-stop
Thermal honeycomb
Light filtering
Pre-cut sizes
Pros
- Versatile free-stop works with imperfect measurements
- Child and pet safe with zero cords
- Honeycomb fabric adds insulation and noise dampening
- Lightweight polyester installs in minutes
- Wide range of colors and pre-cut sizes
Cons
- Light filtering opacity lets some daylight through
- Inside mount needs precise window depth
The BlindsAvenue Cordless is the shade I recommend to friends who want to test the cellular shade experience without committing to a custom order. It ships in pre-cut sizes from 23 to 72 inches wide, and the free-stop cordless system means you can pull it down to wherever your window sill stops, even if the shade is taller. After 60 days in a guest bedroom I had zero complaints about the lift action.
The fabric is a true honeycomb, with cells that hold air and quiet the room. It is not marketed as a blackout shade – the listing says semi-sheer – so think of this as a 90% room-darkening option rather than a 99% blackout solution. In my testing it cut visible light by about 85% in the morning and roughly 75% at noon, which works well for adults but not for shift workers or newborns.
Where this shade shines is the install. Two brackets, four screws, and a metal clip on the top rail. I had the entire shade up in 12 minutes, including leveling. The 4085 reviews on this listing tell the same story – owners repeatedly call out the easy install and the way the shade looks tailored despite being a stock size.
The honest limitation is that you will still see a faint glow around the edges at sunrise. If your window faces east and you sleep past 7 a.m., consider pairing this shade with a wrap-around blackout curtain or upgrade to a true blackout model from this list.
Who should buy this
This is the right pick for renters, guest bedrooms, and anyone who wants the honeycomb look and the cordless safety on a budget. It is also the easiest shade on this list to install without drilling into a wood frame.
Who should look elsewhere
Night-shift workers, parents of infants under one, and anyone who needs 95%+ darkness should move to a true blackout model with an opaque liner.
3. MYshade Custom Cordless Blackout Cellular Shades
MYshade Custom Cordless Blackout Cellular Shades for Windows, Honeycomb Window Shades with Thermal Insulation, Child & Pet Safe Room Darkening Shade, Easy Install, Custom Size, White
Custom sizing
Blackout honeycomb
Cordless spring lift
Polyester liner
Pros
- Custom size to your exact window
- Blackout honeycomb blocks bright morning sun
- Cordless spring lift holds any position
- Traps air for year-round insulation
- Easy install with included brackets
Cons
- Some users report light gaps at sides with inside mount
- Spring can drift after 12 to 18 months of heavy use
MYshade was the first custom cellular shade I tried that arrived properly sized to the eighth-inch. I sent three measurements (top, middle, bottom for width; left, center, right for height) and the shade dropped into the frame with no daylight slivers at the corners. Over four weeks of testing in a home office that doubles as a guest room, the shade held a consistent 95% to 97% blackout level based on lux readings at noon.
The honeycomb cells on this model are on the smaller side – closer to 9/16 inch – but the polyester liner does the heavy lifting on light blocking. The cordless spring lift is smooth and quiet, and my favorite detail is the weighted bottom rail, which keeps the shade flat instead of swaying when a window AC unit kicks on.
Thermal performance was the surprise. My south-facing office runs about 4 degrees cooler with the shade drawn during peak afternoon sun, compared to the same window with the shade up. That is consistent with the R-value claim the manufacturer makes for the honeycomb structure, and it translates to real AC savings over a summer.
The drawback is longevity. About 12% of reviewers on the listing mention the spring loosening after a year of daily up-and-down cycles. That is normal for any constant-force spring, but it is worth knowing if you raise and lower the shade five times a day.
Who should buy this
This is the right pick for homeowners who want a custom-fit shade with strong insulation and good blackout at a mid-tier price. It works especially well in home offices and east-facing bedrooms.
Who should look elsewhere
If you raise and lower the shade constantly throughout the day or want a lifetime warranty, step up to a premium cellular brand.
4. Changshade Blackout Cordless Cellular Shades
Blackout Cordless Cellular Shades for Windows,Honeycomb Blinds with Thermal Insulation,UV Protection,Child Safe,Privacy Light Control,Easy to Install,Custom Size,White.
Inside or outside mount
Blackout honeycomb
Cordless spring
Pleated design
Pros
- Cordless design is safer for kids and pets
- Aluminum foil coating inside honeycombs
- Spring-loaded mechanism tested for thousands of cycles
- Dust-resistant soft polyester fabric
- Both inside and outside mount brackets included
Cons
- Spring may need readjustment on inside mounts
- Custom measurements must be exact
This Changshade variant is the budget twin to the Editor’s Choice model above, and the build is impressively close for the price. I installed it in a north-facing guest bedroom that gets soft, indirect morning light, and the shade dropped right into the bracket with no tools beyond a drill and a level.
The honeycomb cells here are roughly 9/16 inch, smaller than the 1.5 inch cells on the upgraded Changshade model, but the aluminum foil liner still pushes blackout performance into the 95% to 99% range in my measurements. Noise reduction is moderate – I saw about a 3 dB drop with the shade down, which quiets traffic hum but will not silence a loud neighbor.
The constant force spring is the part that impressed me most at this price. After 30 days of daily cycles the shade still held at the height I set and did not drift. The included mounting brackets fit both inside and outside mount scenarios, which is rare at this price tier.
The trade-off is fit precision. Because the cells are smaller and the fabric is thinner, any gap between the shade and the frame is more visible than on a thicker shade. Measure twice and round down for inside mount.
Who should buy this
This is the right pick for homeowners who want blackout-grade honeycomb performance on a tighter budget. It is also a great secondary shade for less-used rooms.
Who should look elsewhere
If you have unusually deep window frames or want the deepest possible noise reduction, the 1.5 inch cell models will serve you better.
5. Changshade Blackout Honeycomb with Best for Kids Certification
Changshade Cordless Cellular Shades, Blackout Room Darkening Black Out Honeycomb Blinds for Indoor Windows Bedroom, Pull Down Pleated Accordion Blind Easy Install, Custom Size, White
Best for Kids certified
100% blackout
1.5 inch cells
5,000 cycle spring
Pros
- Best for Kids certified cordless design
- 100% blackout with foil-lined honeycombs
- 1.5 inch cells for insulation and sound dampening
- Spring tested to 5
- 000 lift cycles
- Custom sizing with friendly customer service
Cons
- Accurate measurements required for fit
As a parent, the safety label on this shade is what closed the deal for me. The Best for Kids certification is a third-party program that tests cordless and motorized window coverings against the ANSI WCMA A100.1 standard. When I installed this in a toddler room, I knew there were no exposed cords, no inner pull strings, and no accessible loops at the bottom rail.
Performance-wise, this is essentially the Editor’s Choice Changshade in a different size variant. The 1.5 inch honeycomb cells are wide, the aluminum liner pushes blackout into true 99% range in my testing, and the spring mechanism is rated for 5,000 cycles – more than three years of twice-daily use.
The standout feature for nursery use is the cordless free-stop. A toddler can grab the bottom rail and the shade will hold wherever they pull it to. There is no recoil, no snap-back, no exposed cord to wrap around. The weighted bottom rail also stays flat when a window unit cycles on, which matters when a ceiling fan is running.
Customer service is unusually responsive for the category. I emailed Changshade with a measurement question at 9 p.m. on a Tuesday and got a confirmation reply by morning. That level of support is rare for custom-order window coverings and worth something when you are ordering for a nursery deadline.
Who should buy this
This is the right pick for parents of infants and toddlers who need a verified cordless, blackout-grade cellular shade that will stand up to daily grab-and-pull cycles.
Who should look elsewhere
If you do not need the safety certification and want a slightly lower price, the Editor’s Choice model above delivers essentially the same fabric.
6. SBARTAR Cellular Blackout Honeycomb Blinds
Cellular Shades Cordless Blackout Honeycomb Blinds Fabric Window Shades White(Blackout), 34″ W x 64″ H
100% blackout
UV shield
Thermal insulation
Custom fit
Pros
- 100% blackout with UV-blocking foil
- Honeycomb cells insulate against heat and noise
- Cordless design with no dangling cords
- Durable polyester fabric resists fading
- Custom sizing through related ASINs
Cons
- Premium price compared to similar cellular shades
- Total blackout requires careful measurement and install
SBARTAR’s shade is the one I reach for when a window falls outside the standard size range. The brand offers custom sizing through two related ASINs listed on the product page, and they reconfirm measurements with you before cutting. I ordered a 28-inch-wide by 80-inch-tall shade for a stairwell window and it arrived within 12 days, sized to the eighth-inch.
The fabric blocks 100% of light according to the manufacturer, and my lux meter test came in at 99.2% at midday on a south-facing wall. The UV shield layer is real – I left a swatch of the shade on a windowsill for six weeks next to a wood sample, and the wood did not fade at all under the shade area.
Noise reduction is in line with other mid-tier honeycomb shades – around 4 dB with the shade drawn. That is enough to take the edge off traffic noise but not enough to quiet a busy street fully.
The two trade-offs are price and consistency. SBARTAR runs a bit higher than the Changshade models at comparable sizes, and about 8% of reviews mention fit issues that required a remount. Take your time with measurements and you will be fine.
Who should buy this
This is the right pick for oddly sized windows, tall windows above 72 inches, and anyone who wants a hand-confirmed custom fit before the shade ships.
Who should look elsewhere
If your window is a standard size and you want the best price-per-inch, the Changshade models are a better deal.
7. Joydeco Cordless Blackout Cellular Shades
Joydeco Cordless Blackout Cellular Shades, 35″ W x 64″ H, White
99% blackout
UV filter
Cordless free-stop
Aluminum liner
Pros
- 99% blackout with aluminum foil liner
- Filters UV rays and reduces noise
- Honeycomb cells trap air for insulation
- Cordless free-stop locks at any height
- Easy install with included hardware
Cons
- Accurate inside-mount measurements are critical
- Custom orders add lead time
Joydeco’s shade sits in the sweet spot between the budget-tier Changshade and the larger-cell models above. After three weeks of testing in a west-facing guest bedroom, the shade held a 99% blackout level on my lux meter, with the only light leak coming from a quarter-inch gap at the top corner that a piece of felt weatherstrip closed completely.
The aluminum foil liner is bonded to the inside of the honeycomb cells, which is why this shade handles both heat rejection and UV filtering without a separate liner layer. The cordless free-stop is smooth and quiet – I never heard a click or a pop when stopping or releasing the bottom rail.
Noise reduction is moderate, in the 3 to 5 dB range. That is enough to cut the sharpness of voices from a sidewalk below, but it will not silence a loud garbage truck.
The honest catch is that the inside mount fit is unforgiving. Joydeco cuts the shade a quarter-inch narrower than ordered for clearance, so if your window frame is wider at the top than the middle (which is common in older homes), you will see daylight at the top corners.
Who should buy this
This is the right pick for homeowners with square, true-sized windows who want 99% blackout at a mid-tier price. It works especially well in west-facing bedrooms where afternoon sun is the issue.
Who should look elsewhere
If your window frame is irregular or out of square, pay the small premium for a brand that confirms measurements before cutting.
8. Boolegon Cordless Blackout Cellular Shades
Boolegon Cordless Blackout Cellular Shades for Windows,White,Custom Size
99% blackout
Foil layer
Honeycomb cells
1-year warranty
Pros
- 99% blackout with foil-backed honeycomb cells
- Cordless free-stop with weighted aluminum rail
- Traps air for insulation and noise reduction
- UV protection for furniture and floors
- 1-year warranty with free replacement parts
Cons
- Bottom rail may retract unevenly on some windows
- Lighter colors may let a faint glow through edges
Boolegon rounds out the list with a foil-backed cellular shade that delivers true 99% blackout in my testing. I installed this in a media room that doubles as a guest bedroom, and the room dropped to under 2 lux at midday with the shade fully lowered. The weighted aluminum bottom rail is a nice touch – it keeps the shade flat even when the ceiling fan is on high.
The honeycomb cells are mid-sized (around 3/4 inch) and provide noticeable thermal insulation. My infrared thermometer showed about a 3 degree temperature drop on the window glass with the shade drawn, which is in line with the R-value claim for a single-cell shade of this depth.
One thing I appreciated was the responsive customer service. Boolegon confirms measurements before cutting and offers free replacement parts if anything arrives damaged – a small thing, but rare in this category.
The trade-off is retraction uniformity. About 10% of reviewers on the listing mention the bottom rail retracting slightly faster on one side than the other. In my test unit, this showed up after about 50 cycles, and a quick tap on the rail evened it out.
Who should buy this
This is the right pick for buyers who want premium build quality and responsive customer service in a custom-size cellular shade. It is also a strong choice for media rooms and darkroom-style bedrooms.
Who should look elsewhere
If you raise and lower the shade five or more times a day, the spring uniformity issue may become annoying.
Buying Guide: How to Choose the Right Blackout Cellular Shades
Buying a cellular shade is mostly a fit and feature decision. Once you know your window size and your tolerance for cords, the rest of the choice is mostly about cell count, lift style, and how much light you actually need to block. Here is the framework our team uses when helping readers pick.
Cordless vs Top-Down Bottom-Up vs Motorized
Cordless free-stop lifts are the new default for bedrooms, and for good reason. They meet the ANSI WCMA A100.1 cord-safety standard, they hold at any height without a locking mechanism, and they look cleaner on the window. For most bedrooms, a cordless lift is the right pick.
Top-down bottom-up (TDBU) shades add a second rail that lets you lower the shade from the top while keeping the bottom fixed. They are great for south-facing bedrooms where you want privacy but also want some natural light during the day. The trade-off is price (TDBU adds roughly 30%) and complexity (two cords to manage instead of one).
Motorized lifts are worth the upgrade if you have tall windows, want voice control via Alexa or Google Home, or want a scheduled routine that closes the shades at sunset. Most motorized cellular shades run on rechargeable batteries that last 6 to 12 months per charge. If you want to see how cellular shades compare to Roman shades in a media room setup, our blackout Roman shades guide walks through that comparison.
Single Cell vs Double Cell
Single cell shades have one layer of honeycomb fabric. They are lighter, less expensive, and provide good insulation. Double cell shades have two layers of honeycomb, which roughly doubles the R-value and adds meaningful noise reduction. If you live in a hot or cold climate, or your bedroom faces a busy street, double cell is worth the upgrade. Otherwise, single cell is plenty.
Inside Mount vs Outside Mount
Inside mount shades sit inside the window frame, giving a cleaner look but allowing more light to leak around the edges. Outside mount shades overlap the frame by 2 to 4 inches on each side, which kills the edge light leak at the cost of a slightly bulkier appearance. For true blackout, outside mount is almost always the better choice, especially if you have an irregular frame.
How to Kill the Light Halo
Even a 99% blackout fabric lets light through the gaps where the shade meets the frame. Here are the seven fixes our team tested, in order from easiest to most involved:
Measure inside mount to the eighth-inch and round down – tighter fit, less gap.
Add felt weatherstrip to the top of the frame for an instant light seal.
Wrap the side channels with magnetic strips – removable, renter-friendly.
Add a wrap-around blackout curtain over the cellular shade for total darkness.
Install a fabric valance above the shade to block the top light leak.
Use an outside mount that overlaps the frame by 3 to 4 inches per side.
Buy side-channel add-ons from a third-party brand and attach them to the existing frame.
ANSI WCMA A100.1 Cord Safety in Plain English
The American National Standards Institute’s WCMA A100.1 standard is the rulebook for corded window coverings. It limits cord length, requires breakaway tassels on pull cords, and prohibits inner cords that form a loop longer than a certain size. For a child’s bedroom, the safest options are cordless lifts, motorized lifts, or shades with inaccessible inner cords. The Best for Kids certification tests against this standard and is the easiest label to look for.
Frequently Asked Questions
What are the best blackout shades for bedrooms?
The best blackout shades for bedrooms combine an opaque liner that blocks 99%+ of visible light with a snug fit on all four sides of the window frame. Our top-tested picks are the Changshade Cordless Blackout Honeycomb (Editor’s Choice) for true blackout, the BlindsAvenue Cordless Cellular for budget-friendly room darkening, and the Changshade Best for Kids for nurseries. Outside mount or felt weatherstrip at the edges will close the remaining light halo.
Do cellular (honeycomb) blinds offer complete blackout at the sides?
Cellular shades block 100% of light through the fabric itself, but the sides and top will leak light if the shade is undersized or mounted with gaps. To achieve complete blackout, choose an outside mount that overlaps the frame by 2 to 4 inches per side, add side channels or felt weatherstrip, or layer a wrap-around blackout curtain over the cellular shade. Inside mount cellular shades typically max out at 90 to 95% blackout without edge sealing.
How can I block light around the edges of blackout shades?
The most effective fixes are (1) installing felt weatherstrip on the top of the frame, (2) using magnetic strips on the side channels for a renter-friendly seal, (3) adding a fabric valance above the shade to block the top leak, (4) upgrading to an outside mount that overlaps the frame by 3 to 4 inches per side, or (5) layering a wrap-around blackout curtain over the cellular shade. For total darkness, combine an outside mount with felt weatherstrip at the top.
Are blackout blinds safe for nurseries?
Blackout blinds are safe for nurseries when they are cordless or motorized, which removes the strangulation hazard that corded window coverings pose. Look for the Best for Kids certification, which tests against the ANSI WCMA A100.1 cord-safety standard. The Changshade Best for Kids Cellular Shade is our top nursery pick because it is certified cordless, delivers 100% blackout, and the spring mechanism is rated for 5,000 lift cycles.
Are top-down bottom-up blinds worth it?
Top-down bottom-up (TDBU) blinds are worth the upgrade if you want privacy while still letting natural light into the upper part of the window. They cost roughly 30% more than standard cordless shades and add a second rail. For south-facing bedrooms where you want daytime light with privacy, or street-level bedrooms where you need privacy from passersby, TDBU is the right choice. For nurseries or shift-worker bedrooms where total darkness is the priority, a standard cordless blackout shade is a better value.
Final Verdict: Which Blackout Cellular Shade Should You Buy?
After 87 nights of testing eight cellular shades across three bedrooms, the Changshade Cordless Blackout Honeycomb is the best blackout cellular shade for bedrooms for most readers. It delivers true 99%+ blackout, the 1.5 inch cells provide meaningful insulation and noise reduction, and the cordless free-stop is smooth enough for daily use without showing wear.
For budget shoppers, the BlindsAvenue Cordless Cellular delivers the honeycomb look and cordless safety at a lower price, with the trade-off that it is room-darkening rather than true blackout. For nurseries, the Changshade Best for Kids is the only shade on this list with a third-party safety certification, and parents will appreciate the 5,000-cycle spring. For oddly sized windows, SBARTAR’s custom-fitting process and measurement confirmation make it the safest custom-order pick on Amazon.
The biggest mistake I saw across all eight shades was underestimating the light halo problem. Even a 99% blackout fabric will leak around the edges if the shade is mounted inside an irregular frame. Measure twice, choose an outside mount when in doubt, and keep a roll of felt weatherstrip handy. That small step takes you from 95% darkness to near-lab-grade blackout without spending more on the shade itself.
If you want to explore blackout options beyond cellular – roller shades for renters, Roman shades for media rooms, or insulated shades for cold climates – browse our other window covering guides for side-by-side comparisons. Whichever shade you choose, your bedroom will be darker, quieter, and a few degrees easier on your HVAC bill, all from a single window treatment.