How much sleep do you get each night? Most of us know that eight hours is the recommended amount, but with work, family, and social commitments often consuming more than 16 hours of the day, it can seem impossible to make the math work. Perhaps you feel that you operate just fine on four or five hours a night. Maybe you’ve grown accustomed to red-eye flights, time zone changes, and the occasional all-nighter. You might even wear your sleep deprivation like a badge of honor.

A version of this article appeared in the September–October 2018 issue of Harvard Business Review.