What does 22 momme silk actually mean? A plain-English guide to silk weight, feel, durability and why SunnySass chose 22 momme for its sleep mask.
MOONLIGHT JOURNAL · SILK GUIDE
22 Momme,
explained simply.
If you've ever wondered what 19, 22 or 25 momme actually means, you're not alone. The number sounds technical, but the idea is surprisingly simple: momme is a way of measuring the weight of silk fabric.
The short answer
22 momme silk is silk fabric with a momme weight of 22. It is a more substantial fabric than 19 momme, but lighter than 25 momme.
In metric terms, 22 momme is approximately 95.5 g/m².
The important part: higher momme does not automatically mean better silk. It simply means more fabric weight for a given area. The right weight depends on what the silk is being used for.
22
Momme
≈ 95.5 g/m²
What does "momme" actually mean?
Momme is a traditional unit used to describe the weight of silk fabric. It is not a measurement of the total weight of a finished product, and it is not the same thing as thickness.
The simple definition
Fabric
weight.
weight.
Think of momme as a way of understanding how substantial a silk fabric is before you even touch it.
19 momme
≈ 82.5 g/m²
22 momme
≈ 95.5 g/m²
25 momme
≈ 108.5 g/m²
A useful rule of thumb: 1 momme ≈ 4.34 g/m².
The finished weight of a sleep mask will be different because
the product also includes filling, lining, straps and other
construction details.
19 vs. 22 vs. 25 momme
There isn't one universal "best" momme. Different weights create different fabric experiences, and the right choice depends on the product.
19 momme
Light & delicate
A lighter silk option with a soft, fluid feel. Suitable for many lightweight silk applications where a less substantial fabric is preferred.
22 momme
Balanced & substantial
A more substantial silk fabric while still retaining the smooth, refined character of silk. This is the weight SunnySass chose for the Moonlight sleep masks.
25 momme
Heavier & denser
A heavier fabric with a more substantial hand. It can be a good choice when a denser, weightier silk experience is preferred.
Higher momme isn't automatically better. It's about choosing the right weight for the object.
A silk scarf, a pillowcase and a sleep mask have different jobs. Their ideal fabric weight does not have to be the same.
What momme tells you — and what it doesn't
Momme is useful, but it is only one piece of the silk story. A product described as "22 momme" still leaves several important questions unanswered.
01
Fiber
Momme does not tell you whether the fabric is silk, polyester satin or another material. Always check the actual fiber composition.
02
Silk grade
Momme and silk grade describe different things. A product can combine a stated silk grade with a particular fabric weight.
03
Weave
The weave affects the final surface, drape and hand feel. Momme alone cannot tell you how the fabric was constructed.
04
Finished construction
For a sleep mask, the shape, filling, stitching, strap and nose contour all contribute to the final experience.
Why SunnySass chose
22 momme
We didn't choose 22 momme because we believe it is the only acceptable silk weight. We chose it because it fits the experience we wanted Moonlight to create.
Substantial
A more substantial hand than very lightweight silk without turning the mask into something heavy.
Smooth
Silk's naturally smooth surface is part of what makes it feel different from many everyday textile alternatives.
Everyday
A sleep mask is handled, adjusted, packed and cared for repeatedly. We wanted the fabric to feel made for daily ritual.
Refined
The goal was not simply a technical specification. It was creating something that feels quietly luxurious when you use it.
Does 22 momme mean better light blocking?
This is where it is worth separating a useful specification from an exaggerated promise.
A heavier silk fabric can contribute to a more substantial and opaque feel, but momme alone does not determine how much light a sleep mask blocks.
Light reduction also depends on the fabric's construction, color, layers, shape and—most importantly for a sleep mask—how the mask fits around the face.
01
Fabric
Weight, weave, color and opacity all influence how light interacts with the material.
02
Coverage
Broad eye-area coverage can help reduce gaps around the edges of the mask.
03
Nose contour
A shaped nose area can help the mask sit closer to the face and reduce surrounding light.
04
Fit
Every face is different, so real-world light reduction can vary from person to person.
22 momme, Grade 6A, mulberry silk — what are you actually reading?
These terms often appear together on premium silk products, but they are not three ways of saying the same thing.
01
Mulberry silk
Describes the source of the silk fiber.
02
Grade 6A
A raw-silk quality classification used in silk sourcing.
03
22 momme
Describes the weight of the finished silk fabric.
In other words, these specifications answer different questions. That's why it is useful to look at all of them instead of treating one number as a complete quality score.
How to choose a silk sleep mask
If you're comparing silk sleep masks online, don't stop at the words "22 momme." Look at the whole object.
01
Check the actual fiber
Look for clear fiber information. "Silky" and "satin" do not necessarily mean the product is made from silk.
02
Check the momme
19, 22 and 25 momme are all legitimate fabric weights. The number helps you understand how substantial the silk is.
03
Look at the filling
A silk outer fabric does not automatically mean the inside of the sleep mask is also made from silk. Check the construction.
04
Look at the shape
Eye coverage, contouring and the nose area can make a meaningful difference to how a sleep mask sits on your face.
05
Check the strap
An adjustable strap allows you to find a comfortable balance between a secure fit and gentle pressure.
06
Read the care instructions
Silk is a delicate natural fiber. Good care matters regardless of whether the fabric is 19, 22 or 25 momme.
A higher number is not the goal.
The right material is.
That's the philosophy behind Moonlight: choose materials and construction intentionally, then let the product speak for itself.
22 momme silk,
without the jargon.
If you remember only five things, make them these.
- Momme measures silk fabric weight.
- 22 momme is approximately 95.5 g/m².
- Higher momme means heavier fabric, not automatically better silk.
- Momme does not tell you the entire quality or construction story.
- For a sleep mask, fabric weight is only one part of comfort and light reduction.
The SunnySass Moonlight choice
Our Moonlight sleep masks use 22-momme Grade 6A mulberry silk for the outer fabric, with a silk-filled core and an adjustable silk-wrapped strap.
22
Momme silk
A substantial silk weight chosen for the feel we wanted.
6A
Grade
Grade 6A mulberry silk used for the outer fabric.
100%
Silk-filled core
Pure silk fiber filling inside the sleep mask.
We also designed the mask around the material: broad eye-area coverage, a contoured eye space, a shaped nose area and an adjustable strap. The goal is simple — a sleep accessory that feels as considered as the material it's made from.
Frequently asked questions
What is 22 momme silk?
22 momme silk is silk fabric with a momme weight of 22.
It corresponds to approximately 95.5 grams per square metre.
The number describes the fabric weight, not the total weight
of the finished product.
Is 22 momme silk good quality?
22 momme is a substantial silk fabric weight and can be an
excellent choice for products such as sleep masks and bedding.
However, momme alone does not determine overall quality.
Fiber, silk grade, weave, finishing and construction also matter.
Is 22 momme better than 19 momme?
Not automatically. 22 momme is heavier and generally feels
more substantial than 19 momme. Whether it is better depends
on the product and the experience you want from it.
Is 25 momme better than 22 momme?
Not necessarily. 25 momme is heavier than 22 momme and can
provide a denser, weightier fabric feel. But heavier is not
automatically more suitable for every product.
Does 22 momme mean thicker silk?
Not exactly. Momme measures fabric weight rather than directly
measuring physical thickness. Weave structure and finishing
can also influence how thick or substantial a silk feels.
Does higher momme make silk more durable?
A heavier fabric contains more material per unit area, which
can contribute to a more substantial structure. But durability
also depends on the silk fiber, weave, finishing, stitching,
care and how the product is used.
Does 22 momme silk block more light?
Momme alone does not determine light blocking. Fabric construction,
opacity, color, layers, mask shape, nose contour and fit all
influence how much surrounding light enters.
What is the difference between 22 momme and Grade 6A silk?
They describe different things. Momme describes the weight of
the finished silk fabric, while Grade 6A refers to a raw-silk
quality classification.
Is mulberry silk the same as 22 momme silk?
No. Mulberry silk describes the source of the silk fiber,
while 22 momme describes the weight of the finished silk fabric.
Mulberry silk can be produced at different momme weights.
What is the best momme for a silk sleep mask?
There is no single best momme for every person or design.
19, 22 and 25 momme can all be used successfully. SunnySass
chose 22 momme because it offers the balance of softness and
substance we wanted for the Moonlight sleep masks.
How should I care for a 22 momme silk sleep mask?
Follow the care instructions supplied with your product.
In general, silk should be washed gently in cool water with
a silk-friendly detergent. Avoid bleach, harsh chemicals,
wringing and high heat, and allow the fabric to air dry gently.
MOONLIGHT · SILK SLEEP RITUAL
Now you know what
22 momme actually means.
We chose 22-momme Grade 6A mulberry silk for the Moonlight Collection because it felt right for the ritual we wanted to create: soft, substantial, considered and quietly luxurious.
Explore MoonlightCurious about the difference between silk and satin? Explore more from the Moonlight Journal →
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