Radiant moisturized skin. Smooth, docile hair. Anti-aging care. Jennifer Lopez, Cindy Crawford, Reese Witherspoon, Eva Longoria, Kim Kardashian, Kate Winslet and hundreds of Hollywood actresses and supermodels sleep on pillowcases made of 100% natural silk to preserve the beauty of skin and hair. Leading beauty experts - from world-renowned dermatologist Rebecca Casin to Hollywood's most popular make-up artist, Charlotte Tilbury - consider “beauty sleep” on silk pillowcases to be a necessary component of effective skin and hair care.