How celebs get their sleep

Since the death of Heath Ledger, celebrities have aimed to get to sleep as naturally as possible rather than use prescription drugs.

Celebrity nutritionist Philip Goglia recommends that his clients get a deep sleep for even just a few hours a night.

"The best thing to use is a calcium, magnesium and zinc combination, such as Calcium Magnesium Zinc, it knocks you out," he says.

"If you take three of those a night you will have a deep sleep, which means you will release more growth hormone and wake up a little leaner. Not only do you benefit in bone density and bone health, it also relaxes muscle tissue and keeps muscles from cramping."

Magic magnesium

"It's found in milk and is a natural sleep aid. I take four pills a night that each contain calcium, magnesium, zinc and vitamin D from a brand called Nature's Life," she says. "The only downside is that you can get a little loose in the stool if you take too much. Simply back off a tablet or halve a tablet and see if it does the trick."

As for exercise helping sleep, Eva says to avoid anything strenuous. "Most people stay awake for a couple of hours after exercise. The best exercise is yoga, stretching and meditation. Even 10 minutes of meditation before bed every night helps calm the mind, whereas strenuous aerobic exercise gets your metabolism up and running."

Eva recommends doing something every night before bed, whether it be 10 minutes of meditation, a yoga class, pilates class or stretching class.