Sleep and Safe Driving
Lack of sleep can make it harder to suddenly react to road conditions, such as a braking car, sharp curve in the road, or other road hazards.
Drowsy Driving Warning Signs:
- Trouble keeping your eyes open or focused
- Continual yawning
- Inability to recall driving the past few miles
If you feel sleepy while driving, pull off the road to a safe place and take a nap for 15-20 minutes.

Tips to Avoid Drowsy Driving
- Be well rested before hitting the road. Keep in mind that if you skimp on sleep for several nights in a row, it might take more than one night of good sleep to be well rested and alert.
- Avoid driving between midnight and 7 a.m. This period of time is when we are naturally the least alert and most sleepy.
- Don’t drive alone. A companion who can keep you engaged in conversation might help you stay awake while driving.
- Schedule frequent breaks on long road trips.
- Don’t drink alcohol.
- Don’t count on caffeine. Although drinking caffeine might help keep you awake for a short time, it won’t overcome extreme sleepiness.
Remember, if you are short on sleep, stay out of the driver’s seat!
Resources
- (English) In Brief: Your Guide to Healthy Sleep Fact Sheet by the National Heart, Lung, and Blood Institute; National Institutes of Health; U.S. Department of Health and Human Services
- (Español) En resumen: su guía para un sueño saludable por el Instituto Nacional del Corazón, los Pulmones y la Sangre; Institutos Nacionales de Salud; Departamento de Salud y Servicios Humanos de EE. UU.