95%

Reported falling asleep easier

*Based on a four-week independent customer panel

89%

Experienced increased REM sleep

*Based on a four-week independent customer panel

88%

Noticed a reduction in under-eye bags.

*Based on a four-week independent customer panel

From Curious to Confident

Traditional silk masks are flat; they press against your eyelids and almost always leak light around the nose. Kōsa uses Zero-Lux™ 3D contouring to create a hollow "eye-chamber." This allows for total darkness without ever touching your eyes or eyelashes, ensuring a deeper REM cycle.

Not at all! We engineered the mask with tapered perimeter edges. While the eye-wells provide depth, the sides of the mask transition into a slim profile that stays flush against your face.

This is one of our primary design pillars. Because the interior of the mask is recessed, your lashes natural or extended never make contact with the fabric. You can blink freely while wearing the mask, ensuring your lashes stay perfectly intact throughout the night.

To maintain the integrity of the high-performance foam and the exterior textile, we recommend a gentle hand wash in cold water with a mild detergent. Simply air dry in the shade.

Yes. Our unique cushioned nose-bridge acts as a gasket, sealing the gap where 99% of other masks fail. When fitted correctly, you will experience an absolute void, even in a brightly lit room.

Products

The Kōsa Zero-Lux™ Recovery Mask

95%

89%

88%

From Curious to Confident

Country/Region

Country/Region

Products

The Kōsa Zero-Lux™ Recovery Mask

95%

89%

88%

From Curious to Confident