Skip to product information
1 of 11
  • New Year Sale

    Extra 25% off with code

100% Mulberry 19-Momme Silk Flat Sheets

100% Mulberry 19-Momme Silk Flat Sheets

Regular price $145.99
Sale price $145.99 Regular price $182.48
Sold out -20%off Free Shipping

Secure Payment via:

Payment methods
  • Visa
  • Mastercard
  • American Express
  • PayPal
  • Diners Club
  • Discover
  • JCB


100% Mulberry Silk
Skin-Friendly and Breathable
Light and Soft
Style: Silk Flat Sheet
Premium Collection
Thread Count: 400
OSOR SILK silk flats are handmade and crafted from high-quality 19-Momme 100% Pure Mulberry Silk. Our silk flat sheet from our premium collection is soft to the touch, breathable, and incredibly cozy. Its luminous sheen and luxe drape mark it as the finest quality bedding.Enjoy the soft and smooth touch of silk after a long day’s work, and pull on a deep slumber in its comfortable embrace - there is simply no better conclusion for a stressful day.

Shipping & Easy Return

-Free Shipping site-wide

-30-Day Easy Returns

-P.O. Boxes and Military Addresses (APO, FPO) cannot be delivered.

Learn More

Silk Care

-Professional Dry Cleaning Recommended

-Hand wash or Machine wash in lukewarm water (30°C) on the most gentle cycle available.

- Minimize spin time.

-Do Not Use Bleaches

-Do Not Tumble Dry

-Hang dry if possible, however, avoid direct sunlight exposure.

- Keep out of touch of pets/sharp objects.

Learn More

View full details

Our Promise

Leave us to take good care of your skin and hair during sleep time

  • 100% 6A Grade

    Premium Mulberry Silk

  • Keep Hair Natural

    Moisture During Sleep

  • Anti-aging & Anti-


  • Antibacterial &


  • Stay Cozy with Sweat

    Absorbing Tech

  • OEKO Certified & No


1 of 6

As your second layer of sleeping skin

As a natural fabric, silk fabric contains a large amount of silk protein and 18 kinds of amino acids. It is a natural protein fiber material that can nourish the skin, integrating thin, fine, and transparent.

No longer afraid of insomnia

In the inner wall of silk fiber, there are fine moisture channels. Even if the air is wet, silk will make the skin dry and not sticky. You can keep seven hours (hopefully) restful sleeping in all seasons.

Enjoy sleeping in the clouds

In the clouds of the city, have a silk dream. Every night, take off your fatigue, sleep in the soft silk, and have a good dream.

We Make
The Softest 22-Momme Premium
Mulberry Silk

Higher quality, thicker and silkier than cheaper alternatives.


Certifided Nontoxic

Guaranteed clean and safe. Free of pesticides and chemicals. Skin-Friendly!


Highest Grade (6A)

Only 5% silk in the world meets 6A standard.

Join OSOR Community

Loved By Hundreds of Families

  • Cristal

    Looks and feels better than I even hoped for considering the price and some of the reviews. I have only slept on them a couple nights now but I love the way it feels and my hair looks real nice. And they make my bed look sensual!

  • Cat DeGroff

    These sheets are amazing! They wash well and their softness is unparalleled. I love the deep pockets of the fitted sheet and the silky-soft pillowcases that don't mess up my hair at night. Looking for a wonderful, luxurious sheet set to pamper yourself nightly with? These sheets are the answer.

  • Carla Spacher

    This is the best sheet I have purchased in the last couple of years. These are much better and higher headcounts than once that major department stores had higher prices. It is of good weight, high thread count, and not sure. Softness is the best

1 of 3

Customer Reviews

Based on 53 reviews
sheena cardenas
Awesome Experience!

Awesome! Took us awhile to muster up the courage to switch to silk sheets but Im so glad we did. Feels great - appears to be very well built and customer service was a bit plus!

Anthony J Peterka
These silk sheets have totally improved my night's sleep.

You will not regret buying these sheets. AWESOME comfort!!!

Amazing amazing amazing

Im so glad I made this investment... its so soft and smooth. 100% real silk and its even machine washable! Its also not too delicate to be used normally. Im going to buy a laundry protector bag for more frequent washes

Super nice sheet

I use flat sheets to put on the backs of quilts I make. This sheet will work great and just the color I needed,

James S.
Perfectly Silk

I have purchased both the the 19 momme flat and fitted sheet and can assure its one of the best priced higher end silk bedding options. Its thicker and smooth. Ive opted to hand wash instead of machine to help preserve the silk as much as possible. It is more time consuming but the sleep at night is well worth the extra work.


Don’t just listen from us, hear from our happy customers

You May Also Wonder...

Are your products 100% pure silk?

Yes! All Osorsilk products are made from ultra-luxurious 100% Pure Mulberry Silk. We use the highest grade (6A) long fiber mulberry silk, with a thickness of 22 momme and enforce the strictest quality guidelines, including non-toxic dyes.

Where are your products manufactured?

Please feel assured that all of our products are made of 100% Grade 6A mulberry silk in China, which is safe and healthy. No chemicals are added in our production process and the use of any machinery or chemical additives that could potentially compromise the quality of our silk has been strictly forbidden to ensure the perfectly soft and smooth feel of our products. Thousands of pillowcases have been sold to our customers in 6 years and we will always provide the best products and services to our customers.

What does Momme mean?

Instead of thread count, silk fabrics use momme – i.e. fabric weight to measure the quality of silk fabrics. Momme weight describes the weight of 100 yards of silk, 45 inches wide, in pounds. Higher momme means there are more strands of silk per 100 yards of fabric, therefore making the product heavier. So if we weigh that fabric, and say it’s 19 pounds, the momme would be 19-momme. The higher the momme, the higher quality and more durable the fabric is. Momme can range anywhere from 11-momme to 25-momme.

How do I track my orders?

After the order ships out, you will receive a shipment email with the tracking number provided. If you have not received an email about your order being shipped within 2-5 business days of the date you placed your order then please contact for further assistance.

How long will it take my order to arrive?

Due to COVID-19, our delivery times may be delayed.Standard Delivery (USPS) shipping times.We expect delivery times of 3 to 5 business days for U.S. orders; due to current conditions, some orders may ship later than usual. Thank you for your support.
*Includes warehouse receipt processing time.Expedited FedEx Express shipping options are available at checkout.We offer free shipping in the United States. All orders are shipped from our central California distribution center.*Includes shipping to Hawaii and Alaska standard.

How do I care my silk?

-Hand wash or machine wash in lukewarm water (30°C) on the gentlest cycle available.

- Minimize spin time.

-Do not use bleach.

-Do not tumble dry.

-Hang dry if possible, avoiding direct sunlight exposure.

- Keep out of range from pets and sharp objects.