A clinician's standard
Created by a dermatology PA who spent 15 years treating skin. 25-momme mulberry silk with silver-ion technology.
25 Momme Mulberry Silk
Classic Silk Sleep Mask
A LIGHT-BLOCKING SILK RITUAL FOR RESTORATIVE REST
LIGHT BLOCKING: Comfortably shields light for uninterrupted rest
GENTLE ON SKIN: Smooth silk that minimises friction against skin through the night
COOLING + BREATHABLE: Thermo-regulating silk, naturally cool to the touch
CLEAN SLEEP SURFACE: Woven with SILVADUR™ silver-ion technology, stays fresher between washes
LASTING QUALITY: 25-momme, 6A grade Oeko-Tex® certified mulberry silk, built to stay smooth wash after wash
Why Silk for Skin and Sleep
Cotton and synthetic mask fabrics can absorb oils, moisture and skincare products while creating friction against skin through the night. ZILK's ultra-smooth silk absorbs less and minimises friction, helping skin retain its hydration and reducing overnight creases.
What Makes 25-Momme Different
Most silk masks are woven at 19 to 22 momme. ZILK uses 25, a denser and smoother weight that creates a stronger fabric and holds its silky finish night after night.
The Clean Sleep Surface
ZILK masks are woven with SILVADUR™, LANXESS' patented silver-ion technology, designed to resist odours and keep silk fresher between washes.
Silk's naturally smooth, dense weave is gentle against skin and holds up to skincare, serums and daily wear without snagging. The breathable, thermo-regulating surface keeps the mask cool against the skin for more comfortable rest through the night.
Suitable for: All skin types
Treatment: Silver-ion infusion
Fabric: 100% 25-momme 6A grade Mulberry silk
Certification: Oeko-Tex® certified, responsibly made, non-toxic
Care: Hand wash recommended; air dry flat
FREE SHIPPING LIMITS:
- NL & BE from €70
- DE from €110
- International from €120
Orders received before 15:00 CET Mon-Fri are shipped same day; after 15:00 CET shipped the next day.
€3.95 shipping costs within NL on orders below free shipping threshold. For rates to other countries, please see our shipping policy
Returns: 60-day returns on unused, unwashed items in original packaging. EU 14-day right of withdrawal applies. See full policy.
Product information
INSIDE EVERY ZILK PIECE
Silver Ion Technology
Every ZILK piece is treated with Silvadur™ silver-ion technology, from LANXESS. Designed to keep silk fresher between washes while staying gentle on skin.
- Silvadur™ silver-ion treatment
- Fresher silk, wash after wash
- Oeko-Tex® certified for textile safety
- bluesign® certified for responsible textile production
Independently tested
ZILK silk was washed 20 times, then tested by SGS. The result: its silver-ion technology still inhibits the growth of bacteria on the fabric surface.
- 20 washes
- 99.5% fewer S. aureus
- 99.3% fewer K. pneumoniae
S. aureus and K. pneumoniae are the two standard bacteria used in textile testing.
Ritual of Restoration
SILK AT EVERY TOUCHPOINT
Every ZILK product is made from 25-momme mulberry silk, infused with SILVADUR silver ions. The collection is designed around a single idea: smooth, cool silk, engineered to stay clean between washes, supports the nightly ritual of rest.
INSIDE EVERY ZILK PIECE
Silver Ion Technology
Every ZILK piece is woven with SILVADUR™, LANXESS' patented silver-ion treatment. Designed to keep silk cleaner between washes while staying gentle on skin.
- SILVADUR™ silver-ion treatment
- Fresher silk, wash after wash
- Oeko-Tex® certified for textile safety
- bluesign® certified for responsible textile production
ENGINEERED FOR ENDURANCE
25 MOMME SILK
Most silk pillowcases are woven at 19 to 22 momme. ZILK uses 25. The difference is a tighter weave and a smoother surface that holds its beauty through years of washes.
THE HIGHEST GRADE MULBERRY SILK
6A Silk Quality
ZILK uses 6A-grade mulberry silk, the top tier of the standard silk grading system. 6A silk is woven from the longest and smoothest fibers, giving the fabric a uniform weave that resists pilling and glides against skin and hair night after night.
INTERNATIONALLY VERIFIED SAFETY
OEKO-TEX® Certified Clean Sleep
ZILK meets the globally recognized OEKO-TEX® STANDARD 100—the world’s leading independent certification for textile safety. Every silk fiber is tested for more than 1,000 potentially harmful substances and verified safe for daily contact with skin.
- Independently tested for 1,000+ substances
- Certified safe for sensitive skin and hair
- Free from toxins, irritants, and allergens
- Certified STANDARD 100 by OEKO-TEX®
THE SCIENCE BEHIND THE FEEL
SILK, ENGINEERED FOR REST
Every ZILK piece is woven from 25-momme mulberry silk and infused with SILVADUR™ silver-ion technology, made for the surface skin and hair rest on a third of your life. A cooler, smoother, quieter surface than what most people sleep on.
- Cool, smooth contact against skin through the night
- Less friction, less pulling on skin and hair
- SILVADUR™ silver-ion infused, stays fresher between washes
Frequently Asked Questions
What are silver ions and why are they used in ZILK masks?
Silver has been valued for its cleanliness properties for centuries. ZILK silk is treated with SILVADUR™, LANXESS' silver-ion technology, designed to resist odours and keep masks fresher between washes.
How do I wash my silk mask?
We recommend hand washing with a pH-neutral detergent and air drying flat to maintain shape and softness.
How long will my sleep mask last?
With proper care, ZILK’s 25 momme silk maintains its luxurious softness and durability for years of nightly use.
™ Trademark of LANXESS Deutschland GmbH or its affiliates.
SGS Test Report SL52615326175601TX×
