Silk Sleep Mask

Name: Silk Sleep Mask - Cassiopeia Black
Brand: The Beauty Sleeper
SKU: TBSSM01
Price: 280.00 USD
Availability: InStock

Cassiopeia Black

$280.00 USD

Description

The Cassiopeia Black Silk Sleep Mask is one of the most opulent prints in The Beauty Sleeper archive, and with only a handful remaining, one of the rarest.

Crafted from 100% Mulberry silk, it creates complete darkness and the kind of deep, uninterrupted sleep your body genuinely needs. Softly padded, exceptionally comfortable and designed to sit gently against the face, it is a mask you will reach for every single night.

Rich enough to leave on the pillow. Comfortable enough to wear until morning.

Handmade in small quantities. Designed exclusively for The Beauty Sleeper. Very few remaining.

Why Darkness Matters

Light is one of the most powerful signals the brain uses to regulate sleep. Even low levels of ambient light from a streetlamp, a screen or an early morning sunrise can reduce the depth and quality of rest without you ever fully waking.

A silk sleep mask creates a consistent blackout environment wherever you sleep, supporting the body's natural sleep rhythm and making it easier to fall asleep, stay asleep and wake feeling genuinely rested.

For frequent travellers, light sleepers, and anyone who shares a room, it is one of the simplest and most immediate improvements you can make to your sleep quality, and one you will notice from the very first night.

Craftsmanship

The Beauty Sleeper is designed in Copenhagen and handcrafted by a small family-run sewing studio in Shanghai, world-renowned for its long tradition of working with silk.

We believe in fewer, better things: products made to last, not to be replaced. Each sleep mask is carefully finished by hand, combining Scandinavian simplicity with generations of silk expertise.

For selected styles, we work with surplus and deadstock fabrics to give high-quality textiles new life and reduce unnecessary waste.

Fabric & Care

This handcrafted sleep mask is made from 100% pure Mulberry silk on both the exterior and the lining, one of the softest and most skin-friendly natural fibres available.

Our fabrics are digitally printed in small batches by our OEKO-TEX certified supplier using Azo dye-free inks and minimal water. A layer of natural wool sits in between, acting as a soft insulator for a gently weighted, comfortable feel against the skin. Silk and wool are entirely natural fibres, breathable and temperature-regulating by nature, keeping you cool when you need it and warm when you don't.

This sleep mask can be washed on a wool or silk programme at a maximum of 30°C using a specialist wool and silk detergent. Do not tumble dry. Lay flat or hang to dry away from direct sunlight. Iron on low heat if needed.

Shipping & Delivery

Free shipping is available on orders over 2,000 DKK in Denmark and 450 EUR internationally.

Orders are packed and shipped within 1-3 business days. In Denmark, orders placed before 12:00 noon Danish time on business days are delivered the following business day.

For full delivery times and destination-specific details, please visit our Shipping & Delivery page.

Silk Sleep Mask - Cassiopeia Black

$280.00 USD

The Foundation of Beauty

We have always believed that sleep is the most underrated beauty treatment available, and the most powerful.

Before serums, supplements or skincare routines comes rest. It is during sleep that the skin repairs itself, inflammation reduces and the body restores what the day has taken. A consistently good night's sleep supports healthier-looking skin, brighter eyes and a greater sense of physical and emotional wellbeing.

For that reason, we consider our Silk Sleep Mask to be the number one beauty essential in our collection.

Not because it changes who you are. But because good sleep helps you become the best version of yourself.

The Cassiopeia Print

Against a deep black background, large white magnolia blooms open alongside deep burgundy chrysanthemums, golden dahlias and bright red star-shaped botanical details, all connected by the finest tracery of delicate branches and stems. The combination is rich without being heavy, ceremonial without being formal, the kind of print that belongs in the most beautiful bedroom you have ever slept in.

Every element competes for attention and every element deserves it. A print that could only have been made at night, by someone who understood that true luxury does not hold back.

Crafted for Deep Rest

Our Silk Sleep Masks are made from the finest 100% Mulberry silk, one of the softest and most skin-friendly natural fibres available.

Each mask is softly padded and carefully constructed to sit gently against the face without pressure, creating a comfortable, secure fit that moves with you through the night. The smooth silk exterior feels cool and light against the skin, while the thoughtfully shaped design ensures it works equally well for side, back and front sleepers.

From the quality of the fabric to the last stitch, every detail has been considered with one purpose in mind: a sleep mask good enough to use every single night, at home, while travelling and wherever rest finds you.

COMPLETE YOUR RITUAL

The Sleep Routine

The Beauty Sleeper Wild Chamomile silk pillowcase lifestyle — gentle on skin and hair while you sleep

Wild ChamomileSilk Pillowcase50x75 cm

$310.00 USD

The Beauty Sleeper baby alpaca bed socks in Burnt Orange — soft, thermo-regulating socks for a soothing bedtime ritual

Burnt OrangeAlpaca Wool Bed Socks

$75.00 USD

The Beauty Sleeper Spring Green silk scrunchie large detail — made from sleep mask offcuts, zero waste

Dusty Green / Spring GreenSilk ScrunchieLarge

$70.00 USD

The Beauty Sleeper Meadow Bed small silk hot water bottle — travel-friendly natural warmth

Meadow BedSilk Hot Water BottleSmall

$405.00 USD

Questions Before Bed?

A Few Things to Know

A Softer Way to Sleep

Is a Silk Sleep Mask Good for Sensitive Skin?

Yes. Silk is naturally smooth and gentle, making it well suited to the delicate skin around the eyes. Because the surface is soft and low-friction, it glides over the skin rather than rubbing or pulling, which can make it a more comfortable choice for sensitive skin.

Does the Sleep Mask Block Out Light?

The sleep mask is softly padded and generously sized to help create a darker, calmer sleep environment. Its larger shape gives comfortable coverage around the eye area and helps reduce surrounding light, making it especially useful for light sleepers, travel, shared rooms, bright evenings or early mornings.

Why Choose a Silk Sleep Mask Instead of Cotton?

Silk is smooth, light and breathable, making it comfortable to wear close to the skin through the night. Compared with more absorbent fabrics such as cotton, silk does not draw in skincare in the same way, helping your evening creams and serums stay closer to the skin. It is a gentle final step in a nighttime routine, especially when the skin has been cleansed, treated and moisturised.

How Should I Care for My Silk Sleep Mask?

We recommend washing your silk sleep mask only when necessary to preserve its softness and beauty over time. Wash it separately with a mild silk-friendly detergent, place it inside a washing bag for extra protection, and choose a gentle silk or wool wash programme at maximum 30°C. Do not tumble dry, instead gently reshape and air dry away from direct sunlight.

Why Should I Use My Sleep Mask Every Night?

A sleep mask can become a small but powerful part of your evening ritual. By blocking out surrounding light, it helps signal to the body that it is time to rest and supports the natural transition from wakefulness to sleep. Used consistently, it can help create a more familiar and calming sleep environment – at home, while travelling, or during lighter mornings. Soft, comfortable and made for nightly use, it is designed to help the body settle into rest.