Silk and satin get mixed up constantly, but they are not the same thing. Here is the short version.
Silk is a fiber
Mulberry silk comes from silkworm cocoons. It is a natural protein fiber, and it is what our pillowcases are made of: 100% mulberry silk.
Satin is a weave
Satin describes how threads are woven to create a shiny surface. Satin can be made from silk, but most satin pillowcases are made from polyester.
Why it matters for a pillowcase
- Feel: silk is soft and breathable. Polyester satin can feel slick and warmer.
- Weight: silk is measured in momme. Ours is 22 momme, heavier than the common 16 to 19.
- Price: polyester satin is cheaper to make, which is why it is everywhere.
Which should you choose?
If you want a natural fiber that feels smooth and breathable, go with mulberry silk. If you are on a tight budget, satin gives you a smooth surface for less.
Shop our 22 momme mulberry silk pillowcases in Ivory, Navy and Silver. Free US shipping and a 30-day first-order guarantee. New to silk? Read how to wash a silk pillowcase.