Sleeping Beauties: How Hollywood Gets Gorgeous at Night

From Heidi Klum's tip for sexy hair to Kim Kardashian's trick, stars and their glam squads share their favorite tricks to getting gorgeous – during sleep. By Katherine Kluznik Rentmeester.

CLEAN SLATE

Hayden Panettiere reveals her favorite way to save her own skin: a squeaky-clean beauty regimen. The Heroes star tells PEOPLE that before hitting the sheets, "I always make sure 100 percent that all my makeup is off. I never sleep in makeup." And it looks like she's on the right path to beautiful skin. Says Karen Sinclair Drake, skincare expert and founder of Sophyto organics, "For every day you don't remove all your makeup, you age seven days."