Percentage of U.S. night-shift workers who chose the shift based on “personal preference”: 21.5
Percentage of U.S. adults who report one or more symptoms of insomnia a few nights per week: 58
Percentage of adults who would nap at work if it were allowed: 33
Midnight opening screenings of Star Wars: Episode III—Revenge of the Sith: 2,900
Time of traditional Primal Scream during Dead Week, a.m.: 12
Most smoothies served at Stern Hall’s Cyber Café, open 8 p.m. to 2 a.m.: 278
Sources: Bureau of Labor Statistics; National Sleep Foundation; Exhibitor Relations Co., Inc.; Stanford Dining.
