The slippery surface results in fewer creases on our face, says Cheung. Those pillow lines usually diminish after you get up, but there’s research that, over time, skin stretching and pulling that happens overnight can contribute to permanent sleep wrinkles.
2. They may help retain your skin’s moisture
If you have dry skin, a satin pillowcase may help. As Cheung explains, satin isn’t as drying as cotton, so it makes it easier to maintain the skin’s hydration.
3. Satin pillowcases can help acne
Many people believe that sleeping on a smoother surface, like satin, can help if you have acne. The reasoning: Less friction from your pillowcase results in less irritation.