Her routine: Michaels is as hard-core about sleep as she is about exercise, and she prioritizes her rest. She aims for eight hours every night, although her two very young children don't always cooperate. "When I don't get enough sleep, I'm hungrier the next day," she tells us. The wind-down technique she always recommends to clients involves listening to audiobooks—"They are like bedtime stories for adults," she says. One of her all-time favorites is Parallel Worlds, by theoretical physicist Michio Kaku.
Make it work for you: Keep the volume just barely audible, so it's easier to drift off when you're ready.