Contour Silk Sleep Mask - Sumi (Charcoal)
✓ 100-Day Returns • Ships from Seoul
Sumi (墨) — ink-dark charcoal, for the part of the night when the lanterns are out.
Just silk, and the dark.
Contoured so the silk lifts away from your lashes instead of pressing on them. 22-momme mulberry, certified to the standard used for baby products. Free from harmful additives.
Sumi (墨) is ink — the dark the lanterns leave behind. Tōka (桃花) is peach blossom — the petals the fisherman followed. Tōgen itself is 桃源, the Peach Blossom Spring: a hidden valley in a fourth-century story, found by someone who forgot how far he had gone.
Designed in Seoul. Imported.
Certified to OEKO-TEX® STANDARD 100 under Product Class I — the strictest of the four classes, applied to products intended for babies. The certification covers the eye mask itself, not just the fabric.
Certificate No. SH025 240363, issued by TESTEX AG, Switzerland. Valid through April 30, 2027.
100% mulberry silk, 22 momme, 6A grade. No silver ion treatment. No antibacterial coating.
Hand wash in cool water with a mild detergent. Press the water out rather than wringing it. Dry flat, out of direct sun. No dryer, no bleach, no fabric softener. Treated this way, good silk lasts for years.
Ships from Seoul to the US, Canada, Japan, Hong Kong, Singapore, Australia, and New Zealand. Dispatched within 1–3 business days, with tracking emailed once your order is on its way.
US orders ship for $9, or free on orders of $98 and over — import duties included, nothing more to pay on delivery. Orders to every other country ship on the same terms, and import duties are on us everywhere. If you're ever charged on delivery, send us the receipt and we'll refund it.
Changed your mind? Return your mask within 100 days.
If your mask arrives damaged, defective, or isn't what you ordered, email us within 7 days with a photo. We'll replace it or refund you in full — no need to ship it back. Full details in our Refund Policy.
Holds the dark in.
Lifts away from your lashes.
Stays put through the night.
Inspired by Kyoto
In Kyoto's old quarters, the night was kept by paper screens and lanterns; when they went out, the dark was left whole until morning.
Our nights are brighter now. Sumi brings that kept dark back to your eyes — mulberry silk, light as paper, shaped to lift away from your lashes.
THE CONTOUR
A mask that keeps its distance.
Two padded rings rest on your brow and cheekbones, so the silk curves away from your eyelids.
THE FINEST SILK
100% Mulberry Silk, 22 Momme, 6A Grade.
Soft enough to forget it's there.
The Science of Darkness
In a Cardiff University study, adults who blocked light while sleeping showed better memory and greater alertness the next day.
