13 bizarre sleeping habits of super-successful people

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.

But for others - including President-elect Donald Trump - sleep isn't a priority, and they function on just a few hours a night.

Here's a look at the most bizarre sleeping habits of 13 highly successful people.

This is an update of an article originally written by Vivian Giang.