That all-too-common chain of events is explained in the Academy of Management Journal article, “You Wouldn’t Like Me When I’m Sleepy’: Leaders’ Sleep, Daily Abusive Supervision, and Work Unit Engagement.”

“I think it’s obvious to everyone that when I don’t get a good night’s sleep, I’m going to suffer. But an important part of our findings is that when one person doesn’t sleep well, other people might suffer,” said Christopher M. Barnes of the University of Washington. “The big picture is that when bosses don’t get a good night of sleep, they go to work the next day with poor self-control and treat their subordinates worse, and as a result of that, the subordinates are lower in work engagement.”