Mulberry silk, explained: why the label matters
It's on every premium silk label. Here's what it means for the thing you sleep on.
If you've shopped for silk even once, you've seen "100% mulberry silk" everywhere. It isn't just a pretty-sounding word, and it isn't interchangeable with plain "silk."
A very picky silkworm
Mulberry silk comes from silkworms raised on a diet of mulberry leaves and nothing else. That consistent diet produces long, smooth, naturally pale fibers. Wild silks come from moths that eat a mix of plants, and their fibers tend to be shorter, rougher and less even in color.
Why fiber length matters to you
Long, even filaments weave into a smoother fabric with fewer weak spots. Smoother fabric means less friction against your hair and face, which is the entire reason you're buying silk.
And then there's grade
Mulberry silk is graded A, B and C, with numbers for finer steps. 6A sits at the very top: the longest, most uniform fibers you can get. It's what we use, because if you're going to sleep on something every night, it should be the good stuff.
Your label decoder
- "100% mulberry silk, 6A, 22 momme." You know exactly what you're getting.
- "Silk blend." Some silk, plus something else. Ask what.
- "Silky" or "silk touch." Not silk.
The more specific the label, the more confident the brand.
The short version
Mulberry silk is cultivated silk with long, even fibers. Look for 100% mulberry silk, 6A grade, with the momme listed.
