twice as many male drivers than female drivers admit to have fallen asleep while driving.

In the United States, 250,000 drivers fall asleep at the wheel every day, according to the Division of Sleep Medicine at Harvard Medical School and in a national poll by the National Sleep Foundation, 54% of adult drivers said they had driven while drowsy during the past year with 28% saying they had fallen asleep while driving. According to the National Highway Traffic Safety Administration,