25-momme mulberry silk duvet cover, naturally thermo-regulating and infused with SILVADUR silver ions.
25 Momme Mulberry Silk
Silk Duvet Cover
FOR COOLER NIGHTS AND A SOFTER, CLEANER SURFACE
SKIN SOOTHING: Reduces friction and surface irritation through the night.
COOLING + CALMING: Naturally thermo-regulating silk stays cool and breathable through every season.
CLEAN SLEEP SURFACE: SILVADUR silver ions inhibit 99.9% of bacteria growth, keeping the fabric fresher between washes.
LIGHTWEIGHT COMFORT: Smooth, breathable weave provides year-round comfort without weight.
LASTING QUALITY: 25-momme, 6A grade OEKO-TEX® certified Mulberry silk, built to hold its softness and performance wash after wash.
Why Silk Matters for Skin + Sleep
Unlike cotton or synthetics, silk absorbs less moisture and skincare, so your hydration and products stay on your skin rather than being pulled into the fabric. ZILK's tightly woven 25-momme silk reduces friction through the night, helping skin glide instead of tugging overnight.
What Makes 25 Momme Exceptional
Momme measures silk's weight and density. ZILK uses 25 momme, a denser weight than standard 19 and 22 momme silks, creating a stronger fabric with a smoother finish that holds up wash after wash.
The Clean Sleep Surface
ZILK is infused with SILVADUR silver ions that inhibit 99.9% of bacteria growth on the fabric surface, keeping your duvet fresher between washes.
Silk's naturally smooth, dense weave absorbs less than cotton and stays breathable through the night. The thermo-regulating 25-momme weave keeps the duvet cool and comfortable no matter how you sleep.
Suitable for: All skin types
Treatment: Silver-ion infusion
Fabric: 100% 25-momme 6A grade Mulberry silk
Closure: Hidden zipper
Certification: Oeko-Tex® certified, responsibly made, non-toxic
Care: Machine washable on delicate cycle with pH-neutral detergent; air dry flat or tumble dry low
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.
A CLEANER SURFACE, NATURALLY
Silver Ion Technology
All ZILK silk products are infused with SILVADUR™ silver ions, DuPont's patented Smart Release system that helps keep fabric cleaner between washes while staying gentle on skin.
- 99.9% bacteria growth inhibition, based on SILVADUR testing
- Helps fabric stay fresher between washes
- OEKO-TEX® certified for tested safety in textile chemistry
ENGINEERED FOR ENDURANCE
25 MOMME SILK
The higher the momme, the tighter the weave, and the longer it lasts. ZILK uses 25 momme Mulberry silk, the highest density available, for a smoother surface that protects hair and skin while maintaining its beauty for years of nightly use.
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 of Calm
NeuroSilk™ Technology for Mind–Body Restoration
Rest is built on small sensory cues. ZILK's NeuroSilk™ technology is designed to provide them.
Calming Cues: Silk's smooth, cool surface offers steady contact against skin through the night.
Less Friction, More Flow: Skin and hair glide instead of tugging.
Cleaner Rest: SILVADUR silver ions inhibit 99.9% of bacteria growth, keeping your sleep surface fresher between washes.
Frequently Asked Questions
How do I wash my silk duvet cover?
Machine wash in cold or lukewarm water on delicate with a pH-neutral detergent. Use a mesh bag and wash with similar colors. Air dry flat or tumble dry low.
Does silk help with night sweats or temperature changes?
Silk is naturally thermo-regulating, which means it adjusts to your body temperature, staying cool when you run warm and warm when you run cool. ZILK's 25-momme silk has a breathable surface that helps keep you comfortable through the night, whatever your body temperature does.
What are silver ions and why are they used in ZILK silk?
Silver ions are charged silver atoms that have been used for their cleanliness properties for centuries. When silver ions come into contact with bacteria on a fabric surface, they interrupt the bacteria's ability to function and multiply. ZILK silk is treated with SILVADUR, DuPont's silver-ion technology, which inhibits 99.9% of bacteria growth on the fabric surface and keeps your pillowcase fresher between washes.
How long will my duvet cover last?
With proper care, ZILK’s 25-momme silk maintains its softness, sheen, and durability for years of nightly use.
What makes ZILK different from other silk duvets?
ZILK combines 25-momme Mulberry silk with silver-ion infusion to create a cooling, cleaner, and more restorative sleep experience.
WHY CHOOSE ZILK?
