- Improve your beauty sleep with our premium Standard Satin Pillowcase. Its smooth texture helps prevent facial creases and is gentle on skin, hair, eyelashes, and eyebrows. Stay cool and comfortable all night long with our OEKO-TEX® Certified satin, ensuring safety, sustainability, and environmental friendliness. Made with 97% polyester and 3% spandex, our pillowcase measures 26”x19” for the perfect fit.