Gates' bedtime routine involves one hour of reading before going to sleep. "Like anyone who loves books, if you get into a good book, it's hard to go to sleep," he said in the interview.
So if you're looking for book recommendations, Gates is your guy. In fact, the billionaire shared a few of his favorites back in 2016. "These five books kept me up long past when I should have gone to sleep," he said in a tweet, which included a video of the books.
Here's the full list: