01Where ordinary blinds leak light
The perimeter
Fitted guide rails and the bottom seal are designed to close the bright gaps around the blind.

Nach deinen Maßen gefertigt
Nach Maß gefertigt
OneRest Verdunkelungsrollos werden nach deinen Maßen gefertigt — für ein dunkleres, ruhigeres Schlafzimmer. Einfach ausmessen; passt es nicht, übernehmen wir den Rückversand.
Rollos ansehenA fitted frame on every edge.
An air layer between room and glass.
Width and height in centimetres.
A simple step-by-step guide.

Black finish
Also available in white
Made-to-measure blackout blind
A complete fitted system that closes the light gaps around all four edges.
Made to measure from
92,95 €

Designed around the whole opening
Ordinary blackout blinds stop light through the fabric but leave bright gaps around it. OneRest Blind is designed as a complete system, pairing opaque honeycomb material with fitted guide rails and a lower seal.
One complete system
01Where ordinary blinds leak light
Fitted guide rails and the bottom seal are designed to close the bright gaps around the blind.
02Air pockets between room and glass
The cellular structure adds a layer that helps slow heat transfer and soften some outside sound.
03Built from your centimetre dimensions
A closer fit makes the frame look intentional and gives the seal the best chance to do its job.
Made to your measurements
We help with your measurements before and after you buy.
Measure and configure
Use the smallest measurement for each.
Your measurements stay with the order through production.
We review the measurements, cover return shipping and help put it right.
The science of dark sleep
Independent sleep and circadian research keeps landing on the same conclusion: light during sleep — even a little — changes how your body rests and repairs. Here is what the studies actually measured.
Explore the science
100 lux
In a randomized PNAS study, a single night of sleeping in ordinary room light raised nighttime heart rate and measurably worsened next-morning insulin resistance (Mason, Zee et al., 2022).
5 lux
Dimmer than a streetlamp bleeding around a curtain edge — yet polysomnography showed more arousals and shallower sleep (Cho et al., 2016).
Deep sleep
Lights-on nights produced less slow-wave (deep) sleep and reduced delta and spindle power on EEG (Cho, Joo et al., 2013).
88,905
Higher night-time light exposure was linked to higher all-cause and cardiometabolic mortality in a large wearable-sensor cohort (Windred, Cain et al., 2024).
A little clarity goes a long way
From your first measurement to your first dark night. Find the answers you need to choose your blind with confidence.
We make each blind to your measurements, with both width and height from 20 to 300 cm. For larger dimensions, sloping sides, arches or other unusual shapes, send us a photo and your measurements before ordering so we can check whether the frame will fit.
Measure inside the window recess where the frame will sit, rather than just the glass or the wall around the window. The blind fits inside the opening and needs at least 3 cm of clear depth. Measure width and height in three places because openings may not be perfectly square. Enter the smallest width and height in cm to one decimal place.
The blind is not compatible with tilt-turn windows yet. For other window types, the frame, sliding blind and handle all need clearance. Check that the handle will not hit the blind and that the window can still open. Send us a photo and your measurements before ordering if you are unsure.
Email info@onerest.eu with your order number, a photo of the opening and the measurements you used. We cover standard return shipping, review the measurements and help put the fit right. During the 30-day trial from delivery, you can also choose to return the blind for a refund.
Measure every window separately, even if they look identical. Enter the first blind’s size, colour and opening direction, then add it to the basket. Repeat for each different size. Use the quantity selector only for blinds with exactly the same measurements and options. Check each blind’s dimensions in the basket before paying.
You do not need to drill or screw the blind into your window. The frame fits inside the recess; screws for extra support are optional. First, join the labelled frame parts with the supplied assembly screws and fit the brush and sealing strips. A small screwdriver is included; have scissors ready for trimming the strips. Allow around 30 minutes and ask someone to help with wider blinds.
Yes, the blind can be used in a rental. Standard installation needs no drilling or screws into the window, so you can take it down again without damaging the window frame. The self-adhesive brush and sealing strips attach to the blind’s own frame. Screws into the window are optional for extra support; using them will leave screw holes.
Yes. With standard installation, you can remove the blind’s frame from the recess without damage because it is not screwed into the window. If you choose screws for extra support, removal will leave screw holes. The blind is made to measure, so check your new window’s dimensions if you want to take it with you. Contact us if you need help removing it.
Follow the installation guide and check that the frame sits evenly and securely in the opening and that the blind slides freely. If the frame is loose or needs forcing into place, stop and contact us with a photo and your measurements.
Yes. Slide the blind fully or partly open by hand while the frame stays in place. You do not need to remove it every morning. Choose the opening direction when ordering, then decide how much of the window to uncover for daylight.
The blind is not compatible with tilt-turn windows. For other window types, it depends on the opening direction and clearance around the frame. The blind can slide open, but the frame stays in place, so check that your window can move freely before ordering. Open the blind when airing the room and keep vents clear; a fully closed blind limits air circulation at the window.
The blind does not treat damp or replace ventilation, and we cannot promise that condensation will not form behind it. Open the blind regularly, air the room, keep vents clear and wipe condensation from the glass. If the window already has a damp problem, address the cause before fitting the blind.
The honeycomb structure holds air between the room and the glass, adding an insulating layer that can help slow heat transfer. The result depends on your window, sunlight and ventilation. The blind does not actively cool the room.
Use a soft duster or a vacuum on its lowest setting with a brush attachment. Wipe marks on the frame with a lightly damp microfibre cloth. Avoid soaking the honeycomb material or using abrasive cleaners, and follow the supplied care instructions.
Opaque honeycomb material blocks light through the blind. The frame, side guides and lower seal close the gaps that ordinary blinds often leave around the edges. This applies to daylight and streetlights alike. A close seal needs accurate measurements and correct installation; if you see edge light, we can help check the fit.
Choose white or black, with a coordinated blind, frame and side guides. Open the blind during the day while the frame stays in the window. The product gallery shows both colours in rooms. To check the rear finish or street-facing view, contact us for a relevant photo before ordering.
The blind is operated by hand, with no loose operating cords or chains. That is not a nursery safety certification. Fit the frame securely and keep cots and climbable furniture away from the window. You can leave the blind partly open if your child prefers some light.
If you need documentation about materials, emissions or fire performance, contact us before ordering so we can confirm what documentation is available for this blind. We do not promise that the product is odour-free, emission-free or fireproof.
The layered material and enclosed frame can soften some sound at the window. The blind does not make the room soundproof; window construction and wall insulation still matter.
Delivery is normally estimated at 10–15 calendar days after ordering. Production usually starts within 24–48 hours because each blind is made to measure. Check the estimated arrival range beside the buy button. If you have a firm deadline or need to know the dispatch country for your order, contact us before ordering. We send tracking after dispatch where the carrier provides it.
Yes. Order one blind and try it at home for 30 days from delivery, including made-to-measure and sale blinds. You may install and use it. Tell us by the end of day 30 if you want to return it. Standard return shipping is free; we arrange collection or a prepaid label. Return all parts safely packed, following our instructions.
Contact us with your order number and photos if your blind develops a fault. Remedies for faulty products are separate from the 30-day trial and Fit Promise. Our return policy explains the product rights and remedies that apply to your purchase.
You get a made-to-measure blind with a fitted frame and edge seals to help darken the whole window. A basic roller blind can leave edge gaps, while a sleep mask only covers the wearer’s eyes. You can see the price for your measurements and any quantity discount before paying, and start with a single window.
Yes, the blind is a one-off purchase with no subscription. The checkout shows the amount and available payment methods before you pay. For help before or after ordering, email info@onerest.eu. Include your order number and relevant photos for order questions.

One product. Your exact dimensions.
Enter your measurements in centimetres, choose white or black, and see the made-to-measure price before adding to cart.
Configure Your Blind