Designed by a Dermatology and Aesthetic Physician Assistant. Mulberry silk woven with silver-ion technology.
Reduced friction against skin and hair, cooler nights and a light-blocking silk mask for uninterrupted rest.
25 Momme Mulberry Silk
Silk Sleep Kit | Classic Packaging
The complete silk ritual for skin, hair, and restorative sleep
LESS FRICTION: Silk glides where cotton drags, for a softer surface against skin come morning
GENTLE ON HAIR: Less friction means less breakage, less frizz and fewer tangles
LIGHT BLOCKING: Silk sleep mask shields light from every angle for uninterrupted rest
COOLING + CALMING: Breathable, temperature-regulating silk that helps the body settle into rest
CLEAN SLEEP SURFACE: SILVADUR™ silver-ion infused across every piece in the kit, stays fresher between washes
Why Silk for Skin and Hair
Cotton absorbs oils, moisture and skincare products, creating friction that can lead to sleep creases, breakage and frizz. ZILK absorbs less and minimises friction, so your products stay where they belong and hair wakes with fewer tangles.
Why 25-Momme?
Momme measures silk's weight and density. Most silk pillowcases are woven at 19 to 22 momme. ZILK uses 25 momme for a tighter weave, smoother surface and a fabric that holds its performance wash after wash.
The Clean Sleep Surface
Every piece in the ZILK sleep kit is woven with SILVADUR™, DuPont's patented silver-ion technology, designed to resist odours and keep silk fresher between washes.
Silk's naturally smooth, dense weave absorbs less than cotton and holds up to hair products, skincare and daily wear without snagging or shedding fibers. The breathable, thermo-regulating surface also stays cool to the touch through the night for more comfortable rest.
Suitable for: All skin types
Treatment: Silver-ion infusion
Fabric: 100% 25-momme 6A grade Mulberry silk
Closure (pillowcase): Hidden zipper
Inclusions: 1 pillowcase, 1 sleep mask, 1 plush silk scrunchie
Certification: Oeko-Tex® certified, responsibly made, non-toxic
Care: Machine washable (pillowcase + scrunchies); Hand wash recommended for sleep mask
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.
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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 clean between washes, supports the nightly ritual of rest.
INSIDE EVERY ZILK PIECE
Silver Ion Technology
Every ZILK piece is woven with SILVADUR™, DuPont's 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.
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 ZILK Sleep Kit items?
Pillowcase + scrunchies can be hand or machine washed in a mesh bag on delicate, with pH-neutral detergent. Sleep mask should be hand washed for best results. Do not wring. Air dry flat or hang.
What are silver ions and why are they used in ZILK products?
Silver has been valued for its cleanliness properties for centuries. ZILK silk is treated with SILVADUR™, DuPont's silver-ion technology, designed to resist odours and keep silk fresher between washes.
How long will my ZILK Sleep Kit 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, a denser and smoother weight that holds its finish wash after wash.
WHY CHOOSE ZILK?
