Our Top Picks
100% Blackout Blind Magnetic Window Cover57"W x 118"H118 x 57 x 0.05 inches1.5 poundsCheck on Amazon
A bedroom that gets streetlight at midnight and sunrise at five in the morning asks a different question than a living room does. The keyword here is blinds, not curtains, so the real decision is how a hard or semi-rigid covering will seal a window: mounted inside the frame, stuck onto it, held on by magnets, or hung from a bracket. Each approach trades install effort against how much light creeps around the edges, and the bedroom is where that creep matters most.
This guide is written for renters who cannot drill, shift workers who sleep through daylight, parents of early-rising kids, and anyone trying to darken a room without hiring an installer. Every option below comes from the listed product titles, so the comparison sticks to what the titles actually state: cordless operation, no-drill mounting, cut-to-size material, and the fabric or shade style. Anything not in a title, such as exact light leakage or lifespan, is flagged as something to confirm on the listing before buying in 2026.
Quick Picks

Petaholic 100% Blackout Curtains for Bedroom, Portable DIY Window Blinds, No Drill Window Shades & Blackout Blinds with Stickers & Tabs for Travel, Dorm Room, Media Room (118" x 57")
One of the consumer electronics options compared in this guide.
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Window Blinds Cordless No Drill Cut to Size Stick On Temporary Paper Shades | Non-Woven, Blackout, Easy Install, Self Adhesive, Pleated Window Cover for Indoor Windows Doors Bedroom Kitchen Bathroom
One of the consumer electronics options compared in this guide.
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BKSAI 100% Blackout Window Cover, Portable Magnetic Black Out Curtains for Window, Black Out Shades No Drill Cuttable Blackout Blinds for Bedroom, RV, Nursery, Media Room, 79x57 inch, 2Pack
One of the consumer electronics options compared in this guide.
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SUNOFF Cordless No Drill Blackout Cellular Shades, 34" W x 64" H, White | Honeycomb Blinds for Indoor Windows, Free-Stop Blackout Pleated Blinds for Home, Thermal Insulating & Noise Reducing
One of the consumer electronics options compared in this guide.
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Blackout Roller Shades for Bedroom Window Cordless Free-Stop Blinds with Valance UV Protection 100% Black Out Linen Shades Blinds for Indoor Bathroom Windows Living Room Beige Oatmeal 34" W x 72" H
One of the consumer electronics options compared in this guide.
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100% Blackout Blind Magnetic Window Cover,Cuttable Black Out Curtain 118x57 | No Drill,Portable Window Shade with Strong Magnet and Hook&Loop Tape,DIY Black Out Curtains For Bedroom,RV,Nursery,Media Room
One of the consumer electronics options compared in this guide.
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Black Out Window Cover Portable Blacout Curtains for Bedroom Guard Blinds | Window Shades Blackout Blinds No Drill Blackout Shade Adhesive Thermal Temporary Darkening Kitchen Travel Skylight RV 40x57in
One of the consumer electronics options compared in this guide.
View on Amazon| Product | Best for | Key spec from the title |
|---|---|---|
| Petaholic portable blinds | Travel and temporary rooms | 100% blackout, no drill, stickers and tabs |
| Stick-on paper pleated shades | Odd-sized windows | Cordless, cut to size, self adhesive, non-woven |
| BKSAI magnetic window cover | RVs and steel-framed windows | Portable magnetic, cuttable, no drill |
| SUNOFF cellular shades | A finished, permanent look | 34″ W x 64″ H, honeycomb, cordless, free-stop |
| Linen-look roller shades with valance | Hiding the mounting hardware | Cordless free-stop, valance, UV protection |
| Magnetic cuttable blackout cover | Wide or patio-style windows | 118×57, strong magnet plus hook and loop tape |
| Sumobaby portable cover | Small nursery or dorm windows | 42″x60″, hook and loop tapes, thermal |
How to Choose
Match the mounting method to your lease and your window frame
Three families appear in these titles. Adhesive and hook-and-loop covers stick to the frame or wall and come off later, magnetic covers need a steel or magnet-friendly surface plus the included tape, and cordless shades such as the cellular and roller types install with a bracket or a no-tools mount. Renters should favor the first two and read the listing for how the adhesive releases from painted trim. Owners who plan to stay can pick a cordless shade and enjoy a cleaner look.
Measure twice and decide inside or outside mount
Fixed sizes such as 34″ W x 64″ H or 42″x60″ only work when the window opening fits closely. A cover should overlap the glass by a couple of inches on each side if mounted outside the frame, which is the single biggest factor in light gaps. Cut-to-size products solve odd openings, but trimming is permanent, so mark the line with a pencil and confirm the final dimension before cutting. A window wider than about four feet usually needs a wider product or two panels side by side.
Look past the “100% blackout” label to the edges
Almost every title promises blackout, yet the fabric is only half of the result. Light enters at the sides, the top, and through any valance gap. A valance, a magnet strip along all four edges, or a snug inside mount all help. Ignore marketing about “UV protection” if the goal is sleep, since it speaks to sun exposure on furnishings rather than darkness. Choose a darker backing when streetlights are the problem.
Know where budget products cut corners
Low-cost paper and non-woven shades usually trade durability for convenience, and thin adhesive can lift in humid rooms or on textured paint. Cheap magnetic kits can sag on wide spans if the magnet spacing is sparse. Cordless mechanisms on entry-level shades may not hold position as smoothly as pricier ones. If a window gets opened daily, spend toward a cellular or roller shade, and treat stick-on products as short-term or secondary-room solutions.
The 7 Best Options
Petaholic Portable Blackout Blinds
Aimed at people who need darkness on the move, this option is described as a portable DIY blind with stickers and tabs and no drilling. It targets hotel rooms, dorms, and short-term rentals where a bracket is not allowed.
- Strength: no-drill mounting keeps trim and deposits intact.
- Strength: the 100% blackout wording and portability suit travel use.
- Trade-off: adhesive stickers are a temporary fix, and edge sealing depends on how carefully the cover is positioned.
Skip it if the window is opened every day or if the room needs a polished, permanent look.
Stick-On Pleated Paper Shades, Cordless and Cut to Size
This pleated, non-woven shade is self-adhesive and cordless, with a cut-to-size design that helps with windows that do not match standard widths. It fits a guest room or a rental where simple installation matters most.
- Strength: cut-to-size material handles unusual openings.
- Strength: cordless, easy install with no tools described in the title.
The trade-off is the temporary construction: paper-style shades are lightweight and not meant for years of daily raising and lowering. Skip it for a primary bedroom that needs durable, repeatable operation, or for a window with textured trim where adhesive may not hold.
BKSAI Portable Magnetic Window Cover
BKSAI describes a 100% blackout cover that is portable, magnetic, no drill, and cuttable. It is a practical pick for RVs, vans, and homes with steel window frames, and it is listed for bedroom use too.
- Strength: magnets allow quick removal for daytime light.
- Strength: cuttable material adapts to different window shapes.
- Trade-off: magnets need a compatible surface, so a vinyl or wood frame may require the included tape or an alternative mounting approach.
Skip it if the window frame is plastic or wood and the listing does not explain how the cover attaches there.
SUNOFF Cordless Blackout Cellular Shades
The most permanent-looking product here is a 34″ W x 64″ H white cellular shade with a honeycomb structure, a free-stop cordless design, and no-drill installation. It suits a standard bedroom window where a clean finish counts.
- Strength: cordless free-stop operation means no dangling cords and the shade stays where it is placed.
- Strength: the honeycomb build is the style most associated with insulating window covers.
- Trade-off: the size is fixed, so only windows close to that width and height are a clean match.
Skip it if the window is much wider than 34 inches or if the opening requires a custom cut.
Cordless Roller Shades with Valance and Linen Look
This roller shade is described as cordless and free-stop, with a valance, UV protection, and a linen-style blackout fabric, listed for bedroom and bathroom windows. The valance is the notable feature because it covers the mounting hardware at the top.
- Strength: the built-in valance hides the roller and can reduce light at the top edge.
- Strength: free-stop control lets the shade rest at any height.
- Trade-off: the title is truncated, so exact sizes and colors need to be confirmed on the listing.
Skip it if a precise width is required and the available size options do not match the window.
Magnetic Cuttable Blackout Cover, 118×57
The listed 118×57 dimension makes this the widest option in the group, and the title adds a strong magnet with hook and loop tape and a no-drill, portable design. It suits sliding doors, wide bedroom windows, or a bay area.
- Strength: large format covers a wide span without joining multiple panels.
- Strength: two attachment methods give flexibility on different frames.
- Trade-off: a big piece of lightweight material can sag or shift if edges are not fully secured.
Skip it if the window is small, since trimming a large sheet takes careful measuring.
Sumobaby Portable Blackout Cover, 42″x60″
Sumobaby lists a 42″x60″ portable cover that uses upgraded hook and loop tapes and a thermal layer with no drilling. It is a fit for a nursery, dorm, or guest room where a smaller window needs quick coverage.
- Strength: modest size is easy to handle alone.
- Strength: hook and loop tape lets the cover come down during the day.
- Trade-off: it is a temporary-style product, so frequent daily use may wear the tape sooner than a mounted shade would.
Skip it if the window is larger than the listed dimensions or if a tailored, built-in look is a priority.
Which One Fits Your Situation
A renter who cannot drill
The Petaholic portable blinds and the BKSAI magnetic cover both avoid drilling. Pick the Petaholic for a stick-and-tab approach, or BKSAI when a steel frame or an RV window makes magnets practical. A shift worker sleeping through afternoon sun benefits most from edge control, so the stick-on pleated paper shade, which can be cut to the exact opening, and the BKSAI cover, which attaches with magnets around the perimeter, are the practical ones to compare. Pair either with dark bedding and a closed door to keep hallway light out as well.
A standard bedroom window and a permanent home
The SUNOFF cellular shade is the clearest match: cordless, no-drill, honeycomb, and a fixed 34″ W x 64″ H that suits a common opening. For a roller look with a hidden bracket, the valance roller shade is the alternative.
A very wide window or sliding door
The 118×57 magnetic cover is the only product here whose listed size is built for width. Measure the opening first and plan how all four edges will be anchored. A cover this large is easiest to hang with a helper, so set aside a few minutes for alignment before pressing any tape into place.
A small nursery or dorm window
The Sumobaby 42″x60″ cover suits modest openings. Parents should keep any cords, tapes, and loose material out of reach of children and follow the manufacturer’s instructions.
Common Mistakes
- Buying a fixed size without measuring the glass and frame, then discovering gaps at the sides.
- Assuming “100% blackout” means no light at the edges, when the mount and overlap decide most of the leak.
- Putting adhesive products on freshly painted trim, which can peel the paint when removed.
- Choosing a stick-on shade for a window that is raised and lowered every day, since repeated handling is exactly where adhesive and paper-style materials wear out first.
- Ignoring cord safety around cribs and young children, even when a product is advertised as cordless.
Related guides
- Full Length Mirror For Bedrooms Under $100
- Mirror Lights For Small Spaces Under $40
- Night Light For Small Spaces Under $20
Frequently Asked Questions
Do blackout blinds block all light?
The fabric can be very dark, but light usually slips in around the edges. An outside mount with generous overlap, a valance, or magnetic edges narrows the gaps. Expect a dim room rather than a perfect vacuum of darkness, and consider pairing a shade with side channels or a wider curtain panel if a sleeper is especially sensitive to light.
Are stick-on blinds safe for rental walls?
They avoid screw holes, but adhesive can still mark paint or lift finish. Test a small hidden spot first and follow the removal guidance on the listing.
Cordless or corded for a bedroom?
Cordless designs such as the cellular and roller shades above remove dangling cords, which is generally preferred in rooms where children sleep. Always follow the manufacturer’s safety instructions.
Can magnetic covers work on any window?
Magnets need a magnetic surface, such as a steel frame. For vinyl or wood frames, look for the tape or hook and loop option described in the listing.
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