silk pillow case

Most listings describe either 100% silk—commonly mulberry silk, often specified as 6A grade and 22–25 momme—or synthetic satin polyester sold as a vegan alternative.

Typical closures are internal envelope-style openings, zippers (including hidden or side zippers), and simple end-overlap closures.

Silk is typically described by momme weight (e.g., 22 momme or 25 momme, often noted alongside 6A grade). Some satin-style or polyester options are instead listed with thread-count figures (examples in listings include 400–600 thread count).

Many product descriptions emphasize high breathability and temperature-regulating or cooling properties. Some listings specifically state that silk disperses facial heat more effectively than cotton; these are claims made by sellers and may vary by product.

Listings use names and finishes such as satin and sateen as surface weaves/finishes, and plain weave as a construction type. Note that 'satin' can describe the weave or a synthetic satin finish, not always pure silk.