Naturally Fresh
Treated with SILVADUR™ silver-ion technology for freshness protection, helping the fabric stay fresher between washes.
25-momme 6A gradepure mulberry silk
Silver-ion treatedstays fresher for longer
OEKO-TEX® certifiedindependently tested
Created by a dermatology PA-C15 years in skin and aesthetics
The Collection
Silk Essentials for Rest
The science of silk, the ritual of rest
WHY ZILK?
ZILK turns sleep into a ritual for your skin and hair. Made from 25-momme 6A mulberry silk and treated with silver-ion technology, every piece brings together science and a sense of calm.
Kinder to Skin
Silk absorbs far less than cotton, so the moisture and skincare you apply stay on your skin through the night, not in the pillowcase.
Smoother Hair
The dense 25-momme weave lowers friction as you move, helping reduce frizz, tangles and breakage by morning.
Silver-treated silk, made for restorative sleep
WHERE SCIENCE MEETS SLEEP
The surface you sleep on shapes how your skin and hair look by morning. ZILK's silver-treated mulberry silk lowers friction and helps your skin hold onto moisture through the night.
You wake to smoother skin, less frizz and a surface that stays fresher between washes.
Deep Restoration
Made for the dark
The other half of restorative sleep is darkness. A wide silk band sits around your head and adjusts from snug to soft, so you set how much gentle weight you feel while it blocks the light completely. In full darkness sleep comes more easily and holds deeper through the night.
Our Founder
Elizabeth Cook
PA-C · Dermatology and Aesthetics
"After fifteen years of treating skin, I kept seeing the same pattern. Patients invested in their skin by day, then slept on a surface that worked against them all night. When I could not find a pillowcase that met my clinical standards, I made one. I designed ZILK to be the overnight foundation of your skin and hair routine, protecting what you invest in it by day and offering a calm, restorative surface to sleep on at night."
The science behind ZILKOur standard
Held to a higher standard
Everything we make is held to a higher standard, the kind you notice the first night and still notice a year on. A denser weave, a higher grade of silk, a surface that stays fresh, tested and certified before it reaches you.
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Weave weight25-momme, dense and long-lasting19 to 22-momme, thinner
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Surface treatmentSilver-ion treated for a fresher surfaceUntreated
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Independent testingIndependently tested by SGS, still performing after 20 washesRarely tested
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CertificationOEKO-TEX Standard 100 and bluesignOften uncertified
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Made byA practising Dermatology and Aesthetics PA-CA generic manufacturer
Recommended by Cosmetic Doctors
"Post-treatment, the skin is more susceptible to irritation and bacterial exposure. ZILK can support recovery and improve treatment outcomes. I recommend incorporating this into post-procedure care."
Dr. Dietske Miedema
Cosmetic Doctor
"In clinic, we focus on optimizing the skin barrier and reducing inflammation. What patients sleep on plays a role in bacterial load, friction, and overnight moisture loss. Conventional cotton can work against treatment outcomes. I advise patients to consider this as part of their overall skin protocol — ZILK is what I recommend."
Dr. Adriana Villadiego Pereira
Cosmetic Doctor KNMG
Everyday silk, made for rest
Shop the Range
As featured in
Read with ZILK
The Restorative
product care + education
How to Wash and Care for Your Silk Without Compromising Its Beauty
sleep + wellness rituals
Rituals That Signal ‘Sleep Mode’ to Your Body and Mind
zilk essentials
Gifting Rest: Why a ZILK Pillowcase Is the Gift of Restoration
hair health + protection
How Silk Pillowcases Protect Hair from Breakage and Frizz
skin + silk science
25 Momme Mulberry Silk: The Science Behind Skin-Supportive Sleep
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