Faster-Healing Skin "Beauty sleep" is real. Your skin uses sleep hours to heal itself from the day's damage. When you drift off, your skin gets the chance to improve. That's why you may wake up looking fresh and rosy. Fewer Breakouts More sleep, clearer skin. Lack of sleep can lead to stress, which causes pimples and blackheads, even in adults. In one study, experts found that college students had more breakouts when they were stressed out, such as during exam time. Brighter Eyes Want eyes that sparkle? Don't let dark circles steal their spotlight. Dark circles often run in families, but they can look even darker if you aren’t getting enough shut-eye. To disguise them, apply a light layer of eye cream as a primer. Then dab on and blend in a dot of concealer one to two shades lighter than your skin tone. Even Skin Tone Pulling an all-nighter can make your skin look more pale or blotchy. Sleep encourages healthy blood flow to your skin. If you wake up with uneven skin, apply foundation. Set it with translucent powder (or green-tinted powder to balance out redness). Source