Double-lined silk that preserves your style and reduces friction through the night.
25 Momme Mulberry Silk
Silk Sleep Hair Bonnet
OVERNIGHT CARE FOR SMOOTHER HAIR
GENTLE HAIR PROTECTION: Reduces friction that can lead to frizz, breakage and split ends so hair wakes up smoother and more manageable.
MOISTURE RETENTION: Silk does not soak up leave-in products or natural oils the way cotton can. It helps keep hydration, treatments and curl creams where they belong, on your hair.
STYLE PRESERVATION: Helps maintain blowouts, curls, braids and protective styles so they look fresher for longer and require less daily heat or manipulation.
COOLING + BREATHABLE: Silk is naturally thermo-regulating, so your scalp stays more comfortable and less sweaty through the night.
CLEANER SLEEP SURFACE: SILVADUR silver ions inhibit 99.9% of bacteria growth, keeping your bonnet fresher between washes.
Why Silk Matters for Hair
Hair moves while you sleep, creating friction against pillowcases and other textiles that can lead to frizz, dents and breakage. The ZILK Silk Sleep Hair Bonnet surrounds every strand in smooth 25-momme mulberry silk, reducing friction so hair stays smoother and more manageable overnight.
What Makes 25 Momme Exceptional
Many silk bonnets use lighter silk that thins out or loses its sheen over time. ZILK uses 25-momme 6A mulberry silk, double-lined so silk contacts hair on every surface. The denser weave creates a stronger fabric with a smoother finish, designed to hold its performance wash after wash.
The Clean Sleep Surface
ZILK bonnets are infused with SILVADUR silver ions that inhibit 99.9% of bacteria growth on the fabric surface, keeping your bonnet fresher between washes.
Silk's naturally smooth, dense weave is gentle against the scalp and holds up to overnight wear with serums, oils and treatments without snagging. The thermo-regulating 25-momme weave keeps the bonnet cool and breathable through the night for comfortable rest.
Suitable for: All hair types and textures
Treatment: Silver-ion infusion
Fabric: 100% 25-momme 6A Mulberry silk, double-lined interior and exterior
Fit: Non-adjustable, one size fits most (approx. 54–72 cm head circumference)
Certification: Oeko-Tex® certified, tested safe against harmful substances
Care: Hand wash or machine wash in mesh bag on delicate cycle; 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
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
Why use a silk bonnet instead of a cotton scarf or pillowcase alone?
Silk creates less friction than cotton and does not pull moisture or treatments from your hair. A bonnet offers 360-degree coverage so your lengths and ends stay protected even if you move around at night.
Is the ZILK silk bonnet good for curly and coily hair?
Yes. It is especially helpful for curls and coils because it helps preserve definition, reduce frizz and keep styles looking fresher between wash days.
Can I wear the bonnet with protective styles or extensions?
Yes. The full-coverage design is ideal for braids, twists, sew-ins and other protective styles. It helps reduce friction on your lengths and your edges.
Will the bonnet feel too hot?
Silk is naturally breathable and thermo-regulating so it feels cooler and more comfortable than many synthetic or heavy fabrics. If you tend to sleep warm, silk is a great option.
How often should I wash my silk bonnet?
This depends on your hair and product use. As a general guide, wash every 1–2 weeks or more often if you use heavy oils or styling products.
Does one size really fit most?
The bonnet is designed with a soft stretch band that comfortably fits most head sizes from approximately 54 to 72 cm. If you find most standard beanies or hats fit you, the bonnet should fit as well.
WHY CHOOSE ZILK?
