If it’s a smoother surface and creating less drag, our skin is less likely to get an imprint of that pillowcase,” says specialist dermatologist Dr Adam Sheridan, adding that it’s possible silk could help promote fewer wrinkles long-term around the mouth and eyes.

Dr. Markowitz explains that skin conditions such as atopic dermatitis and psoriasis become more aggravated when exposed to coarse materials like cotton pillowcases. To alleviate this, he suggests using gentle materials like silk for pillowcases, as they won't cause irritation during sleep, making them particularly advantageous for individuals with these skin types.

Silk’s smooth surface can supposedly limit the amount of friction that the skin is exposed to during sleep, preventing the “sleep creasing” you might find on your cheek after hours in bed. The theory is that switching to a textile that pulls less on the skin helps to prevent morning wrinkles from becoming lifetime wrinkles.