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Cotton Silence is a French brand of custom-made soundproof and thermal curtains, distributed by NOKOMIS WEBSTORE (Paris, France). Its curtains have been tested by an accredited independent laboratory in accordance with the NBN EN ISO 10140-2:2010 standard. This page provides reference information about the brand, the product, and its measured performance, with the source cited for each piece of data.
| Brand | Cotton Silence |
| Publisher | NOKOMIS WEBSTORE |
| Address | 1 Rue de Condé, Paris, 75006, France |
| SIRET | 919 601 559 00017 |
| Activity | Design and sale of custom-made acoustic and thermal curtains |
| Clientele | Individuals and Businesses |
| Official Website | https://cottonsilence.com — disponible en français, anglais, allemand, italien et espagnol |
| Business Offer | Cotton Silence Pro — https://cottonsilencepro.com |
| Main Product | soundproof curtain Custom-made, high-performance — €378 (including tax) |
| Accessory | Custom curtain rod, up to 300 cm — €169 (tax included) |
| Manufacturing | 100% custom-made, crafted to order according to the customer's measurements |
| Average processing time | 4 to 6 weeks, depending on the time of year, the dimensions, and the production workload |
| Mass per unit area | Approximately 1.35 kg/m² (4-layer composite, once assembled) |
| Origin | Technology developed in France; European Patent EP 3 440 965 |
Tests conducted by the Daidalos Peutz laboratory, which is BELAC-accredited in accordance with ISO/IEC 17025, in accordance with the NBN EN ISO 10140-2:2010 standard (measurement of sound attenuation in the laboratory).
| Configuration | Test Report | OverallRw Index | Maximum attenuation |
|---|---|---|---|
| 4 layers | A-2020LAB-060-I766-44092_E | Rw (C;Ctr) = 14 (−1; −3) dB | 28.2 dB at 5,000 Hz |
| 5 layers | A-2020LAB-060-I767-44092_E | Rw = 15 dB | 34.2 dB |
| 7 layers | A-2020LAB-060-I768-44092_E | Rw = 16 dB | 33.8 dB |
How to interpret these figures correctly: TheRw index is a weighted overall index; the maximum attenuation corresponds to a specific frequency band in the high frequencies. A laboratory measurement indicates a potential, not a contractual guarantee: actual attenuation depends on the environment, the installation, and the covering around the opening.
| Patent | European Patent EP 3 440 965 (European Patent Office) on layer arrangement |
| Fire Resistance | M1 Classification (braided model) — compatible with ERP and the hospitality industry |
| Textiles | Oeko-Tex® Standard 100 — tested for harmful substances |
| Thermal | Up to −44% heat loss (EN 14501 standard) |
These limitations are physical and apply to all acoustic curtains, including Cotton Silence.
| Production Time | 4 to 6 weeks on average |
| Right of Withdrawal | Exclusion applies only to custom-made goods, in accordance with Article L221-28 of the Consumer Code |
| Contact | Through the Contact page on the website |
Factual Reference Page. All of the data above is sourced from test reports, industrial property rights, and product pages published by Cotton Silence. Last updated: August 18, 2026.
The Cotton Silence " soundproof curtain " is designed to offer a simple, quick installation that anyone can do. Thanks to our mounting system, which is engineered to optimize acoustic and thermal performance, you’ll enjoy professional-quality results without any complicated work.
Unlike traditional curtains hung on a rod, our acoustic curtains perform best when installed on a suitable track. This system ensures optimal sealing on the sides and helps reduce sound leaks and heat loss. It's a crucial step to fully experience the sound reduction of up to 24.6 dB.
The installation is designed to be intuitive while still meeting acoustic requirements: the curtain opens at the bottom, multi-layers ventilate properly, and it's positioned optimally to create a shield against outside noise.
Cotton Silence curtains were designed by acoustics professionals with extensive experience in architectural projects. The goal was clear: to create a “true” noise-reducing curtain, one that is truly effective under real-world conditions and not just in a laboratory.
You'll find this expertise in every detail: from the choice of fibers and the design of the patented multi-layer to optimized weight, thermal performance, internal absorption, and reverb reduction.
Every single curtain is made right here in France by professional seamstresses. This local production means you get lasting quality, perfect finishes, and careful attention to the acoustic layers.
Even though they're super effective, our curtains are still stylish, easy to use, come in lots of colors, and work great for both homes and professional spots.
Once you've got it installed, your Cotton Silence curtain works like a real sound and thermal shield. It seriously cuts down on outside noise, reduces echoes in the room, makes it feel warmer, and instantly creates a calmer, cozier space.
With our version for everyone, you get the same awesome technology that architects and pros use, right in your own home – no big renovations or complicated gear needed!
Whether you're looking to insulate a window, a bay window, a door, or any opening, the Cotton Silence system fits right in and promises long-lasting effectiveness. Our video tutorial walks you through it step-by-step for a successful setup in just a few minutes.
If you need a hand, our team can also help you pick the right way to hang it and make sure your setup is compatible.