Close-up of smooth, ivory silk with soft folds

THE SURFACE THAT SHAPES SKIN AND HAIR

WHY SILK MATTERS

Your pillowcase is part of your skincare routine, whether you think of it that way or not. ZILK's 25-momme, 6A grade mulberry silk glides over skin to reduce friction, hold hydration where it belongs, and treat hair more gently than cotton.

ZILK is also infused with Silvadur™ silver-ion technology, from LANXESS, designed to resist odors and keep fabric fresher between washes.

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What's the Difference?

How ZILK mulberry silk compares to satin and cotton

ZILK mulberry silk pillowcase in dark gray
Satin pillowcase in charcoal
Satin
Cotton pillowcase in charcoal
Cotton
Fiber
25-momme mulberry silk, 6A grade
Synthetic weave, usually polyester
Natural cotton weave
Feel
Cool, smooth glide
Slick but warms up
More drag than glide
On skin
Glides so it will not tug or crease skin
Slips but can still tug
Tugs on the face and presses in sleep creases
On hair
Less friction, less frizz and breakage
Some friction
More friction, more frizz
Skincare
Leaves your creams and serums on your skin
Absorbs some product
Soaks up creams, serums and moisture
Temperature
Naturally cool, temperature regulating
Traps heat
Warms up as you sleep
Freshness
Woven with silver-ions to inhibit the growth of bacteria on the fabric surface
Untreated, holds oils on the surface
Untreated, absorbs the oils and moisture bacteria feed on
Comparison reflects typical satin and cotton pillowcases.
Comparison chart between cotton and ZLK sleep products on a gray background.

THE SCIENCE OF SILK

WHAT MAKES ZILK DIFFERENT

Most silk pillowcases use 19 to 22 momme. ZILK uses 25-momme, 6A grade mulberry silk, the densest weight on the market for durability and smoothness. The longer silk fibers create a stronger, more uniform weave that holds its performance wash after wash.

Oeko-Tex® and bluesign® certified, tested against over 1,000 harmful substances.

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ROOTED IN SILK SCIENCE

Silver-Ion Technology

All ZILK products are infused with Silvadur™ silver-ion technology, from LANXESS, designed to keep fabric cleaner between washes while staying gentle on skin.

  • SILVADUR™ silver-ion treatment
  • Fresher fabric, wash after wash
  • Oeko-Tex® certified for textile safety
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THE ZILK PROMISE

Woman sitting on a bed with a coffee mug, a silk pillow behind her back, wearing a silk sleep mask, in a softly lit room.
Medal icon representing premium quality

LASTING QUALITY

25-momme, 6A grade mulberry silk. Built to hold its softness and performance for years.

Droplet icon representing hydration and moisture retention

CLEAN SLEEP

Infused with SILVADUR™ silver ions to help keep fabric cleaner between washes.

Sparkle and curve icon representing smoothness and reduced friction

HAIR + SKIN BENEFITS

Minimizes friction to reduce breakage, frizz and sleep lines while helping skin maintain moisture and a healthy glow.

Crescent moon icon representing sleep and overnight restoration

CALM + RESTORATION

Naturally cooling and weightless, silk soothes the senses and helps your body ease into deeper rest.

™ Trademark of LANXESS Deutschland GmbH or its affiliates.