Beauty sleep isn't just about getting the recommended seven to nine hours of shut-eye — as depending on what you're sleeping on, you may actually be damaging your hair, skin and eyelashes through the course of your nightly repose. There are several beauty products that promise to work their magic while we sleep, but one tip we highly recommend is Unique Bargains' high-quality satin pillowcase. Package included: 4pcs x Pillowcases (Cases only, does NOT contain a pillow.)