For busy, successful people, sleep is a precious commodity, rare and treasured.
So when it comes to getting a solid night of shut-eye, some do everything they can to not let insomnia, pressure at work, or snoring spouses get in the way, even if that means creating a weird nightly routine or napping to get through the day.
Here's a look at the most bizarre sleeping habits of 14 highly successful people.
Tom Cruise sleeps in a soundproof "snoratorium".
Cruise's snores are apparently so bad that he sleeps in a soundproof "snoratorium." Cruise converted a small room — once a nursery — at the back of his house to a soundproof space where he can snore in peace.
"Whoever uses the snoring room cannot be heard outside the locked door," an alleged visitor to the actor's house told the Daily Mail. "It's very small, comfortable, and dark."
Winston Churchill took a two-hour nap every day.
Every day at 5 p.m., the prime minister would drink a weak whiskey and soda before taking a two-hour nap. Churchill said this short "siesta" allowed him to get 1 1/2 days' worth of work done every 24 hours.
Churchill would often work through the night and became known as quite the night owl. Because of his irregular sleep schedule, he was said to hold War Cabinet meetings in his bath.
Mariah Carey surrounds her bed with 20 humidifiers and needs 15 hours of shut-eye per night.
"I've got to sleep 15 hours to sing the way I want to," Carey told Interview magazine in 2007.
The singer also acknowledged she slept with 20 humidifiers around her bed, which soothe sore throats and add moisture to dry air. "Basically, it's like sleeping in a steam room," she said.