Minimizes Frizz
For curly-haired and afro-textured women, frizz is a nightmare! This frizz often occurs due to dryness, which is usually associated with a lack of moisture or, sometimes, humidity. The primary cause, however, is dryness.
Due to the shape of the hair follicle, the sebum and natural oils find it much harder to travel down the hair shaft, resulting in dryness and requiring the application of moisturizing products.
However, all your efforts can be in vain. Why? If you sleep on cotton bedding or pillowcases at night, the tossing and turning can sap moisture from your curls, leaving your hair prone to dryness and causing you to wake up with a massive head of frizz.
This wouldn't be the case with a silk pillowcase or bedding because of how smooth the surface of the pillowcase is, there would be no friction and no wicking away of moisture, leaving your curls or coils as they are.