THXSILK Mulberry Silk Cotton Pillowcase

The dual-sided design offers a practical compromise. The silk side provides the friction-reducing benefits for your hair and skin, while the cotton side offers a more stable, non-slip surface that keeps your pillow from sliding around on the bed.

Yes, 16 Momme silk is effective at reducing friction on hair and skin, which helps minimize frizz and sleep creases. While higher Momme weights are more durable and opaque, 16 Momme is a standard, accessible weight that delivers the essential beauty benefits of silk.

Yes, it is machine washable. We recommend using a gentle cycle with a mild detergent and washing it inside a mesh laundry bag to protect the silk fibers from snagging.

The hidden zipper is designed to be discreet, so it sits flush against the fabric and shouldn't be noticeable while you sleep. It serves the functional purpose of keeping your pillow securely inside the case, preventing it from slipping out during the night.

This certification means that every component of the pillowcase—from the fabric to the zipper—has been tested and verified to be free from harmful levels of over 100 substances known to be dangerous to human health.

Yes, the two sides offer distinct textures. The silk side is smooth and cool to the touch, while the 300-thread-count cotton side is breathable, matte, and provides a more traditional, stable feel that many sleepers prefer for temperature regulation.