The National Highway Traffic Safety Administration says each year drowsy driving is responsible for more than 100,000 car crashes.
This train accident in New York killed four people and injured dozens of others just a few months ago. The conductor said he lost focus and may even have fallen asleep.
Research suggests that sleep deprivation is a growing danger in our 24/7 super connected society.
The problem is experts say fighting sleepiness is a battle everyone loses.
The dangerously tired will, sooner or later, lose consciousness and that can happen at any time.
If you aren't getting enough shut eye, talk to your doctor about how to make sleep a priority or if a sleep disorder is to blame.