And if there's anyone who knows how to disguise the fact that they lost an hour (or more) of sleep, it's nurses. "Working as a night-shift nurse, we are definitely prone to dark circles under our eyes," Chisa Coplin, a registered nurse at New York Presbyterian Hospital, tells Refinery29. "Our sleep schedules are off due to having to attempt to get a good day's rest despite the bright light from the sun shining through our blackout curtains."