Background Data Research has shown that excessive sleepiness is always accompanied by impairment in performance that can lead to human error. Studies of the workplace and the transportation industry have found that 90 percent of accidents are caused by human error. Overall, most everyone could use a good night's sleep. One in three adults say their work has been affected by feeling drowsy during the workday. Some workers succumb to sleep at the office.
Men are twice as likely to nod off as women.
One in five adults say they've shown up to work late or not at all because they slept poorly the night before. Young workers ages 18-24 are guiltiest of staying in bed. One in three survey respondents wake up feeling tired. Whether they need more rest or just better quality sleep, younger workers, ages 18-34, feel the groggiest in the mornings.