A woman sits on a white bed holding a light blue silk pillowcase.

Wake up with better skin & hair.

Our silk pillowcases are perfect for all nights, hair, and skin types.

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Grade 6A Mulberry Silk

Free shipping, all orders

Easy Returns, No hassle

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Everything for your sleep ritual

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Silk Pillowcases

For beauty sleep, acne-prone skin, and moisture lock-in

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Silver silk sleep mask on a light gray background

Silk Eye Masks

For deep sleep, flight naps, and relaxation

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A stack of light gray bedding, including two pillows and a folded duvet cover, photographed on a clean white background.

Duvet covers and bedding set

For full-body temperature regulation

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White silk scrunchie with black polka dot

Silk Hair Accessories

For creaseless hair styling and tension free hold

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A black satin-like robe with white piping trim, featuring a tie belt, long sleeves, and front pockets, shown against a light gray background.

Silk robes and Pajamas

For effortless home elegance and skin soothing

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Champagne gold silk pillowcase with a model

Sleep cool, all summer

Summer heat meets its match. Finally.

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SISIMI 100% Mulberry Silk Pillowcase

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The easiest upgrade to your nightly routine. Choose the weight that works for you.

white silk pillowcases

22 Momme Silk Pillowcase

Everyday silk. Lightweight and breathable. Ideal for warm climates and first time silk users.

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Floral patterned silk pillowcase on a white background

30 MOMME SILK PILLOWCASE

Premium silk. Denser and more durable than 22 momme. Maximum skin and hair benefits.

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Dermatologist recommended

What the experts are saying...

“Because a silk pillowcase is so smooth, it’s also less likely to snag or kink your hair overnight.”

Dr. Maria Robinson

Board-certified dermatologist
Long, wavy brown hair on a plain background
before
Long, straight, brown hair on a white background
after

Why silk works

For your skin

Cotton absorbs your moisturiser and creates friction that deepens sleep lines. Silk glides, retains moisture, and lets your skincare actually stay on your face overnight.
For your sleep

Silk naturally thermoregulates. Cool in summer, warm in winter. No synthetic materials, no chemicals. Just a protein fibre that works with your body's temperature all night.
For your hair

Friction is the main cause of hair breakage and frizz overnight. Silk's smooth surface means your hair slides rather than snags — waking up to smoother, less tangled hair.
A woman wearing a silk teal blue sleep mask.

Total darkness, zero pressure

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Frictionless Beauty
Sustainable & Biodegradable
Minimalist Self-Care
Frictionless Beauty
Sustainable & Biodegradable
Minimalist Self-Care

Upgrade your bedspace

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Our bedding sets use Grade 6A 100% mulberry silk across every piece. Once you've felt the difference of sleeping on silk, cotton feels like sandpaper.

100% mulberry silk duvet cover on a bed in a bedroom

SILK DUVET COVERS

Available in 19 and 22 momme. Lightweight and breathable. Ideal for warm climates and hot sleepers.

Shop now - From $432

Leaf yellow mulberry silk bedding set

SILK BEDDING SETS

Premium silk. Available in 19 and 25 momme. Maximum skin, sleep, and hair benefits.

Shop now - From $980

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OEKO-TEX® certified

Grade 6A, 100% Mulberry silk

Active customer support

Reach us at hello@mysisimi.com

Wavy strands of white silk fibre

The SISIMI Difference

Our mission

The multibillion-dollar beauty industry taught us to approach skincare with endless product layering and routines.

Our mission at SISIMI is to end the era of the complex 10-step beauty routine. 

We simply want to make wellness feel supportive, not stressful, ensuring your environment does the heavy lifting while you just exist.

Our approach is to upgrade the things you naturally do—sleeping, winding down, waking up—with high-performance, restorative essentials.

Our values
  • Minimalism - No 10-step beauty routines. Just sleep, done better because it really is nature's beauty secret.

  • Excellence - We exclusively use Grade 6A Mulberry Silk, the global gold standard, to ensure your rest is never compromised.

  • Intentionality - We value fewer things, done better. Every Sisimi piece is a deliberate choice to simplify your ritual.

  • Care - Every stitch is a commitment to your mental and physical health. We meet you as you show up. No promises of perfection. Just support where it matters most.

  • Sustainability - This is our baseline. We prioritize natural, biodegradable protein fibers and ethical production.
Our philosophy

Our philosophy is rooted in Radical Ease —the idea that the most effective routines are the ones that fit seamlessly into your real life.

We have reframed silk from a luxury accessory to a functional health tool.

No chemicals, no 10-step rules. It is a gentler way to care for yourself, designed for the lazy glow, and we're proud of it.
Our story

Your questions, answered

PRODUCT FAQs

Yes. Cotton is a porous material that absorbs moisture (and your skincare). Our silk is naturally hydrophobic, meaning it keeps the moisture in your skin and hair, preventing dehydration and sleep creases.

Absolutely. Silk is a natural thermal regulator. It wicks away excess heat in the summer and insulates in the winter, keeping your body at the optimal temperature for deep, uninterrupted sleep.

Our pillowcases are made of nothing but silk. 100% Mulberry silk, Grade 6A - the industry's gold standard.

  • Hand wash is ideal - But for the busy life, machine wash is perfect. Use a delicate cycle, cold water, and a mesh laundry bag to prevent snags.
  • Always use a pH-neutral liquid silk/wool detergent - Avoid bleach or fabric softeners, which can break down the natural protein fibers.
  • Never tumble dry - Lay flat in the shade or hang to air dry. Silk dries remarkably fast.
  • Iron or steam on a low "silk" setting to bring back that signature high-luster shine.

This depends on your needs. For a comprehensive breakdown, please visit our blog.

SHIPPING

We process and ship orders Monday - Friday, excluding holidays. Orders generally take 1-3 business days to ship from purchase pending availability and credit verification. During times of high volume, orders may take up to 4-5 business days to ship.

Once your order is shipped, we estimate you will receive your order within 7 - 10 business days (not including processing time), sometimes sooner.

Shipping times may vary, but rest assured we work our hardest to get you your order as quickly as possible. We are unable to ship to PO Box and military addresses.

Visit our Shipping policy page should you have any other questions.

We currently ship to all 50 states in the United States. We do not ship to P.O boxes or military addresses.

We only ship within the 50 states in the US. Stay tuned, more locations coming soon!

CONTACT US

Feel free to reach out to us at any time—we’re here for questions, product recommendations, and feedback. Just send us a note through our contact form.

Or if you prefer, reach out to us at hello@mysisismi.com

Our customer service team is available via email Monday-Friday, 9am-6pm EST excluding holidays. We will respond to your inquiry within 1 business day.