What Is Momme in Silk? Understanding Silk Weight & Quality
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Introduction
When shopping for silk products—whether pajamas, sheets, or pillowcases—you may come across the term momme (pronounced “mo-mee”). But what does momme actually mean, and why is it so important when choosing silk?
Momme is one of the most reliable measures of silk quality. Unlike thread count in cotton, momme indicates the weight and density of silk fabric, which directly impacts durability, texture, and overall feel. Choosing the right momme weight ensures that your silk item is not only luxurious but also long-lasting.
In this article, we’ll explain what momme is, how it’s measured, what different momme levels mean, and how to choose the best momme weight for your needs. We’ll also compare silk momme with thread count, share expert recommendations, and give you practical buying tips. By the end, you’ll feel confident making an informed decision about your next silk purchase.
Can You Define Momme in Silk?
Momme (abbreviated as mm) is a Japanese unit of weight traditionally used to measure silk fabric. It reflects how many pounds a piece of silk fabric (45 inches wide, 100 yards long) weighs.

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1 momme = 4.340 grams per square meter.
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Higher momme = heavier, denser, and more durable fabric.
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Lower momme = lighter, airier, and more delicate silk.
In other words, momme is the silk world’s “thread count” equivalent, but it’s far more accurate at predicting performance.
Why Momme Weight Matters
Durability
Higher momme silks (22–25mm) have denser weaves, making them more resistant to wear and tear.
Texture & Feel
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16–19mm: Light, airy, and breathable. Ideal for summer sleepwear.
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22–25mm: Smooth, rich drape with more body. Popular for bedding.
Longevity
Silk with 22mm or higher momme can last twice as long as 16mm if cared for properly.
Momme Comparison Chart
| Momme Weight | Characteristics | Best Use Cases |
|---|---|---|
| 12–16mm | Light, delicate, sheer | Scarves, lingerie |
| 16–19mm | Balanced softness and breathability | Pajamas, blouses |
| 22–25mm | Dense, luxurious, durable | Bedding sets, robes |
| 30mm+ | Extra heavy, premium | Couture garments, upholstery |

Case Study – Pajamas at 16mm vs. 22mm
A customer purchased both 16mm and 22mm silk pajama sets. After 18 months:

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The 16mm set remained soft but showed minor thinning at high-friction areas (elbows, knees).
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The 22mm set retained full sheen, structure, and showed almost no signs of wear.
Conclusion: While 16mm is great for lightweight comfort, higher momme ensures durability for daily use.
Momme vs. Thread Count – Key Differences
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Thread Count: Measures the number of threads per square inch (common for cotton).
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Momme: Measures fabric weight/density—more accurate for silk.
High momme doesn’t just mean more threads; it means stronger, denser silk fibers.
Practical Tips for Choosing Silk Momme Weight
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Pajamas / Sleepwear: 16–19mm (soft, breathable, suitable for warm climates).
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Pillowcases: 19–22mm (prevents hair breakage and wrinkles, durable).
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Bed Sheets: 22–25mm (withstands daily use, luxurious feel).
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Robes / Luxury Pieces: 22mm+ (extra sheen and durability).
How Our Silk Products Are Selected
At Unisoar Shop, we carefully select 19-momme mulberry silk for pajamas—balancing comfort and durability. For bedding, we recommend 22-momme silk for customers who want longevity and everyday luxury.
[Shop our silk pajama collection →] (Internal link suggestion)
Conclusion
So, what is momme in silk? In short, momme is the measure of silk fabric weight and density, directly influencing softness, durability, and overall luxury. Understanding momme helps you select the right silk—whether you want light, breathable pajamas or long-lasting bedding. Next time you shop for silk, check the momme before you buy.
FAQs
Q1: What momme is best for silk pajamas?
16–19mm is ideal for lightweight, breathable comfort.
Q2: Is higher momme always better?
Not necessarily. Heavier silk is more durable, but for summer wear, lighter momme may feel more comfortable.
Q3: What momme is best for silk sheets?
22–25mm is recommended for everyday use and luxury durability.
Q4: Does momme affect price?
Yes. Higher momme generally costs more due to greater silk density and longevity.
Q5: How do I know the momme weight when buying silk?
Check the product description or label—reputable brands always disclose momme.