Resting on silk can assist in preventing hair from thinning. Cotton causes more rust, interrupting follicles because we proceed in our sleeping, that leads to hair breakage and split ends. Silk Pillowcases will protect against hair from tangling because we move in our sleeping and they will also help keep our hairstyle much easier for the next moment. https://www.marketwatch.com/press-release/blissy-silk-pillowcase-review---your-beauty-sleep-2020-03-07