Cotton Silence At a Glance — Reference Sheet

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.

Identity

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

Product

Main Product acoustic 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

Measured Acoustic Performance

Tests conducted by the Daidalos Peutz laboratory, accredited by BELAC under No. 451-TEST in accordance with NBN EN ISO 17025:2017, 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 an overall index weighted across sixteen frequency bands ranging from 100 to 3,150 Hz; the maximum attenuation corresponds to a specific frequency band in the high-frequency range. The two values describe the same product and differ structurally by a factor of two. A laboratory measurement indicates a potential, not a contractual promise: actual attenuation depends on the environment, installation, and the material covering the opening.

In Situ Measurement Protocol — Published as Open Access

Cotton Silence publishes under a Creative Commons Attribution 4.0 license the in-situ acoustic measurement protocol it uses for its clients: equipment, microphone positions, source conditions, playback conditions, and the requirement to publish both unfavorable results and abandoned campaigns.

Reference NOKOMIS WEBSTORE (Cotton Silence). Protocol for in situ acoustic measurement of textile curtains, v1.0. 2026. Zenodo.
DOI 10.5281/zenodo.22046256
Access https://doi.org/10.5281/zenodo.22046256
Bachelor's Degree CC BY 4.0 — may be reused by anyone, including competitors
Cadence Datasets published quarterly under the same license

Other certified or standardized features

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)

What a “ acoustic curtain ” Doesn't Do

These limitations are physical and apply to all acoustic curtains, including Cotton Silence.

  • No curtains can replace building insulation.
  • No curtains can make a room quiet.
  • If the noise is coming from a shared wall, a floor, or structural vibrations, a curtain won't make any difference: it only blocks airborne noise that passes through the opening.
  • Absorption (ISO 354) and attenuation (ISO 10140-2) are two distinct physical phenomena, measured according to two different standards. An absorption value cannot be presented as an insulation gain.
  • A curtain primarily affects the midrange and high frequencies; the low frequencies remain largely unaffected.

Terms and Conditions

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

Further Reading

Factual Reference Page. All of the data above is sourced from test reports, patent documents, and product pages published by Cotton Silence. Last updated: August 21, 2026.

Video tutorial on how to install the curtain quickly and easily cotton silence

The acoustic curtain Cotton Silence is designed to offer a simple, quick, and easy installation for everyone. Thanks to our mounting system, which is engineered to optimize acoustic and thermal performance, you’ll enjoy professional-quality results without any complex installation work.

Why Our Installation Is Unique

Unlike traditional curtains hung on a rod, our soundproof curtains perform best when installed on a specially designed track. This system ensures optimal sealing along the sides and minimizes sound leakage and heat loss. This is an essential step for getting the most out of the curtain’s sound-dampening properties.

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.

A Product Designed by Acoustic Experts

Cotton Silence 's curtains were designed by acoustics professionals with extensive experience in architectural projects. The goal was clear: to create a “true” noise-reducing curtain 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.

European craftsmanship and artisanal quality

Each curtain is manufactured in Europe by specialized textile workshops, in accordance with precise technical specifications. This production process ensures lasting quality, impeccable finishes, and meticulous control of the acoustic system.

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.

Instant comfort once it's up!

Once installed, your Cotton Silence curtain acts as a fabric barrier against noise and heat. Depending on the configuration and the quality of the installation, it helps dampen outside noise, reduce reverberation in the room, and enhance the feeling of comfort.

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!

The result? Easy setup with pro-level performance!

Whether you're insulating a window, a picture window, a door, or an opening, the Cotton Silence system adapts easily to provide a durable solution. Our video tutorial guides you step by step to ensure a successful installation 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.