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.

SMOOTH OPERATOR

To battle dry, frizzy hair, apply Kérastase Noctogenist ($65) at night, says star hairstylist Tommy Buckett for Sally Hershberger of his favorite trick for getting smooth hair. "It acts like a facial night cream – but for your hair," he says. Apply the serum from the stylist-loved brand's new line to wet or dry locks at bedtime, "and wake up with softer, shinier hair."