It's easy to make the case for slip for beauty sleep, the silk-pillowcase brand that wants your skin to be crease-free and your hair to never suffer the indignity of bedhead. When top dermatologists, cosmeticians and hairstylists agree that you should sleep on silk to benefit your skin and hair, that's advice worth following. And slip for beauty sleep doesn't use just any silk: the brand's pure-silk pillowcases and sleep masks feature the amazing and exclusive Slipsilk, a long-fiber mulberry silk that's extra thick, extra soft, extra shiny and ultra-durable. Your skin and hair will thank you—and so will your eyes once they've experienced a super-restful night under a dreamy Slipsilk sleep mask. And be sure to try the brand's kind-to-your-hair silk hair ties and headbands too.