Our story
How ZILK Sleep Was Born
ZILK Sleep grew from Elizabeth Cook's commitment to helping people look and feel their best long after they leave the treatment room.
Why Silk?
As a board-certified Physician Assistant and international aesthetic expert, Elizabeth had long recommended silk pillowcases to her patients to preserve skin moisture, prevent sleep lines and reduce hair breakage. When she couldn't find a high-quality option that met her standards, she decided to create one herself.
Science Meets Beauty
With her husband Alejandro's support, she sourced 25-momme, 6A grade mulberry silk and enhanced it with SILVADUR silver ion technology to help keep the fabric surface cleaner between washes.
A Family Brand
What began as a clinical solution has grown into a sister-powered international brand. Elizabeth brings the medical expertise. Katharine brings nearly 20 years of beauty industry experience. Together they built a brand where science and beauty work while you rest.
The ZILK Sleep Promise
A family-owned brand with 37 years of combined experience in beauty. Our mission is simple: protect your skin, support your hair and turn sleep into a restorative ritual.
NeuroSilk™ Technology
The Science Behind the Feel
NeuroSilk™ is ZILK Sleep's proprietary silk technology, rooted in neurocosmetics: the science of how sensory experience affects skin, stress and sleep quality. The cool, smooth surface of mulberry silk is designed to create the physical conditions for rest, a quieter, lower-friction surface than what most people sleep on.
- Cool, smooth contact against skin through the night
- Less friction means less pulling on skin and hair overnight
- SILVADUR silver ions keep the surface fresher between washes
SCIENCE MEETS SELF-CARE
CRAFTED FOR RESTORATION
ZILK's silver-infused silk is engineered to support your nightly renewal by reducing friction, keeping the surface cleaner, and helping your skin, hair and rest stay in balance.
LASTING QUALITY
CLEAN SLEEP
HAIR + SKIN BENEFITS
CALM + RESTORE
THAT TRUST ZILK
