United Airlines CEO Scott Kirby lies on his office floor and takes 20-minute naps—and he says it doesn’t mean he’s accomplished any less

CEOs have their own quirks when it comes to running their companies, from shoes off policies to meeting-free afternoons. United Airlines CEO Scott Kirby said an office nap is his trick to staying sharp over his decades-long career in business.

“A thing I do that people have thought is weird is that, throughout my whole career, when I’m in the office, I’ll close the door and take a 20-minute nap,” Kirby recently said in an interview with McKinsey and Company. 

“When I first got to United...