Frequently Asked Questions
Every answer below is true as written. If something you need isn't here, write to us and Erin's team will answer.
About Wink Silk
Who founded Wink Silk?
Erin Wise, Founder and Creative Director. She built Wink Silk while in treatment for Chronic Lymphocytic Leukemia, when every material touching her skin had to be verified and she couldn't find a silk pillowcase that could prove what it was made of. Her full story is on Our Story.
What makes Wink Silk different from other silk pillowcases?
We show you the certificates. Our pillowcase silk is 25-momme, Grade 6A, 100% mulberry silk, crafted by a GOTS & OEKO-TEX certified silk house, and we publish the certificate numbers so you can look them up yourself. For a side-by-side look at the numbers, see our silk pillowcase comparison chart.
What is Performance Luxury Silk™?
Wink Silk's own standard, not an industry certification. It has four parts: 25-momme weight, Grade 6A mulberry silk, GOTS certified fiber origin, and OEKO-TEX Standard 100 chemical safety. Our Douceur™ pillowcases, Voile™ eye masks and Soie™ scrunchies meet all four.
Does Wink Silk run sales or discounts?
No. We'd rather tell you the momme weight, the grade and the certificate number than a percentage off. A discount is a claim about price. A specification is a claim about the product, and only one of those can be verified.
The Silk
What is 25-momme silk?
Momme measures silk density: the more momme, the more silk in every square inch. 25-momme is denser and more durable than the 19 to 22 momme common in most silk pillowcases. How to read momme weight.
What is Grade 6A mulberry silk?
Grade 6A is the highest commercial grade of mulberry silk, with the most uniform fibers and the smoothest surface. Mulberry silk vs regular silk.
What's the difference between silk and satin?
Silk is a natural protein fiber. Satin is a weave, and most satin pillowcases are polyester. Our pillowcases use a charmeuse weave, which gives a satin-smooth face, woven from 100% mulberry silk. Silk vs bamboo and silk vs satin.
Why does the Douceur Doublure™ have a zipper?
Envelope closures slip. A hidden zipper keeps your pillow in place all night. Zipper vs envelope.
What size are Wink Silk pillowcases?
Queen. It's the only size we make right now.
Is a silk pillowcase good for sensitive skin or hair?
Silk creates less friction against skin and hair than cotton, which is why it's widely recommended for fragile hair, sleep creases and reactive skin. It isn't a treatment for any condition. If you're managing a skin or hair condition, talk with your dermatologist or care team. Silk for sensitive skin and pillowcases during chemo.
Certifications
Is Wink Silk GOTS certified?
Our pillowcases, eye masks and scrunchies are crafted by a GOTS certified silk house, GOTS license 00284622. Wink Silk is pursuing its own GOTS Trader certification. See the certificates.
Is Wink Silk OEKO-TEX certified?
All of our products, pillowcases, eye masks and scrunchies, are made from silk certified to OEKO-TEX Standard 100 (certificates 22.HCN.30712 for pillowcases and 19.HCN.84688 for eye masks and scrunchies). Wink Silk is pursuing its own OEKO-TEX certification as well.
What's the difference between GOTS and OEKO-TEX?
GOTS verifies the organic fiber and every processing step. OEKO-TEX tests the finished fabric for harmful substances. GOTS vs OEKO-TEX explained.
How can I verify your certificates?
All three certificate numbers are public. Look up the GOTS license number in the GOTS public database and the OEKO-TEX numbers with the OEKO-TEX Label Check at oeko-tex.com, or start on our certifications page.
Wink Privé and the Founding Collection
What is the Founding Collection?
330 hand-numbered Douceur Doublure™ pillowcases in our founding colorway, Coy™. This exact run will never be restocked.
What is Wink Privé?
Our free membership. Members, called Les Averties (French for "the women who know"), get early access, member benefits and their own founding number. Join Wink Privé.
How does my founding number work?
When you join, we hold a number for you, in the order you joined. It becomes yours when you buy during the Wink Privé early access window. Ten of the first twelve numbers are set aside for the people who carried Erin through chemo.
When does Wink Silk launch?
Wink Privé early access opens November 2, 2026. The public launch is November 5, 2026.
Orders and Shipping
Where do you ship?
Within the United States, for now. Shipping is free.
When will my order ship?
Founding Collection orders are pre-sale. We confirm your ship date by email after you buy, and you can cancel for a full refund before it ships. Once an order is ready, it leaves us within 2 business days.
What if my order arrives damaged or gets lost?
If your order arrives damaged, or tracking shows no movement for 7 days, email hello@winksilk.com. We'll send a replacement or a full refund, whichever you prefer.
What is your return policy?
You have 30 days from delivery to decide, used or not. Returns are free, and you get a full refund to your original payment method within 7 to 10 business days of us receiving it. Pieces you've used are donated to our charity partner on your behalf, so no silk goes to waste. Unopened pieces can also be exchanged for a different color. Email returns@winksilk.com to start. Full return policy.
Care
How do I wash my silk pillowcase?
Turn it inside out and place it in a mesh laundry bag, away from anything with zippers or hooks. Wash at 30°C (86°F) or below with a pH-neutral detergent. Don't wring or twist it. Air dry only, out of direct sunlight, and never tumble dry. To iron, keep it inside out on low heat or the silk setting, and don't spray or wet the silk while ironing. How often to wash it.