There’s a reason they call it “beauty sleep.” By getting 8 hours of sleep every night, you’re letting your skin’s cellular repair activity do it’s thing without interruption. And did you know your body and face perspire more as you sleep? This natural moisture makes your skin look radiant and even smoothes out wrinkles. Run a humidifier while you sleep (which will add more moisture to the air) and it’s like you’re using an expensive night cream, but free.