What Does Momme Mean? The Silk Weight Guide That Actually Explains It

Momme Is to Silk What Thread Count Is to Cotton — but More Reliable

Momme (pronounced "mummy," abbreviated mm) measures the weight of 100 yards of fabric that is 45 inches wide, expressed in pounds. A higher momme number means more silk fiber per unit area — denser, heavier, more durable, asnd genuinely more luxurious. Unlike thread count, which manufacturers game by using thinner threads, momme is harder to fake.

Momme weight is the single most reliable indicator of whether a silk pillowcase will perform and last the way silk is supposed to.

The Momme Scale for Pillowcases

• 6–12 momme — Too lightweight for pillowcases. Suitable for lingerie or scarves. Will pill and wear through quickly under nightly use.
• 16–19 momme — Entry-level pillowcases. Soft but thinner, more prone to shifting and bunching. Shorter lifespan with regular washing.
• 20–22 momme — The premium standard. Dense enough for consistent surface contact, durable through frequent washing, noticeably smoother and heavier.
• 25–30 momme — Used in duvet covers and heavier bedding. More than necessary for pillowcases; adds cost without proportional benefit at the pillow level.

For hair and skin benefits specifically, 22 momme is the consensus recommendation. It's the weight where silk reliably maintains a smooth, frictionless surface throughout the night.

Why It Affects Hair and Skin Results

Thin silk (under 19 momme) can wrinkle on the pillow surface, creating folds that press into your face and hair — exactly what you're paying silk to prevent. At 22 momme, the fabric has enough structure to stay flat and smooth under the weight of your head all night. The anti-frizz, anti-crease, and moisture-retention benefits only fully deliver at this weight.

Momme vs. Grade: Two Different Things

Momme measures weight and density. Silk grade (3A, 4A, 5A, 6A) measures the quality of the raw fiber — length, uniformity, and purity. Grade 6A means the longest, most even fibers with the fewest defects. You want both: 22 momme AND Grade 6A. A pillowcase can be heavy with low-grade fiber (dense but rough) or high-grade with low momme (fine fiber but too thin to perform).

How to Verify Before You Buy

Legitimate brands state momme weight prominently. If a listing only says "100% mulberry silk" without a momme number, that's a red flag — it usually means the weight is low and they'd rather not advertise it. Under $25 for a "22 momme" pillowcase should be treated with suspicion; the math on real 22 momme mulberry silk doesn't work at that price.

22 Momme. Grade 6A. That's the Zensation Standard.

No mystery about the specs — 22 momme, Grade 6A 100% mulberry silk, OEKO-TEX certified, machine washable. Available in Standard, Queen, and King with free US shipping and a 30-day guarantee at $39.99.

Shop the Zensation Silk Pillowcase — $39.99 →

See our complete silk pillowcase buying guide: Best Silk Pillowcase: The Complete Buying Guide