A clinician's standard
Created by a dermatology and aeshetics PA-C who spent 15 years treating skin. 25-momme mulberry silk with silver-ion technology.
25 Momme Mulberry Silk
Silk Pillowcase | Classic Packaging
For Skin, Hair and Restorative Rest
Calmer skin, smoother hair, cooler nights. Silk that works while you sleep.
Mix colors freely.
Discount applied automatically at checkout.
LESS FRICTION: Glides against skin and hair through the night
LESS FRIZZ, FEWER TANGLES: Helps minimise breakage by morning
CLEANER SLEEP: Woven with SILVADUR™ silver-ion technology
NATURALLY COOL: Temperature-regulating mulberry silk
BUILT TO LAST: 25-momme, 6A grade, Oeko-Tex® certified
Why Silk for Skin + Hair
Cotton absorbs oils, moisture and skincare products, creating friction that can cause sleep creases, breakage and frizz. ZILK absorbs less and reduces friction, so your products stay where they belong and your hair wakes with fewer tangles.
Why 25-Momme?
Momme measures silk's weight and density. Most silk pillowcases use 19 to 22 momme. ZILK uses 25 momme, which means a tighter weave, smoother surface and a fabric that holds its performance wash after wash.
A Fresher Sleep Surface
Every ZILK pillowcase is treated with Silvadur™ silver-ion technology, from LANXESS, designed to resist odours and keep silk fresher between washes.
Silk's dense, smooth weave is kind to skin and leaves no fiber shedding or snags behind. The thermo-regulating surface keeps the pillowcase cool and breathable, so the temperature stays comfortable whether you run warm or cool at night.
Suitable for: All skin types
Treatment: Silver-ion infusion
Fabric: 100% 25-momme 6A grade Mulberry silk
Closure: Hidden zipper
Fitting: When in doubt, size up. A little extra space won't change the benefits.
Certification: Oeko-Tex® certified, responsibly made, non-toxic
Care: Machine Washable
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
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 fresh between washes, supports the nightly ritual of rest.
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.
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.
HIGH 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
How do I wash my silk pillowcase?
To preserve the natural softness and luster of your silk, hand wash in cold or lukewarm water with a pH-neutral detergent. If you prefer machine washing, place it in a mesh laundry bag and wash on the delicate cycle with like colors. Do not wring. Gently press out excess water with a towel, then hang or lay flat to dry. If needed, use a cool iron or steamer on the reverse side.
What are silver ions and why are they used in ZILK pillowcases?
Silver has been valued for its cleanliness properties for centuries. ZILK silk is treated with SILVADUR™, LANXESS's silver-ion technology, designed to resist odours and keep silk fresher between washes.
How long will my pillowcase last?
With proper care, ZILK's 25 momme silk maintains its smoothness and durability for years of nightly use.
What is a momme?
Momme (pronounced "mo-may") is the unit used to measure silk's weight and quality. A higher momme means a denser weave and more durable fabric. While many silk pillowcases are made with 19 or 22 momme silk, ZILK uses 25 momme, the thickest and smoothest available, so it lasts longer and keeps its finish wash after wash.
WHY CHOOSE ZILK?
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SGS Test Report SL52615326175601TX×
