An estimated 145 million U.S. adults—61% of the adult population—have driven while drowsy at least once, and nearly 35 million do so monthly, according to findings highlighted by the National Sleep Foundation (NSF). The statistics underscore a widespread and often overlooked public safety risk: drowsy driving can kill or injure in an instant, yet four in 10 adults fail to recognize its basic warning signs, translating to about 108 million people.
The NSF produces Drowsy Driving Prevention Week®, an annual campaign to educate the public about the importance of sleep for safe driving and to encourage drivers to “Sleep First. Drive Alert.®” The campaign stresses that prevention begins before getting behind the wheel, with choices such as prioritizing adequate sleep.
The implications for road safety are significant. Warning signs include frequent blinking, nodding, difficulty keeping eyes open, and drifting out of lane. Because drowsiness slows reaction times and increases crash risk, the NSF advises drivers who notice these signals to pull over to a safe place and take a break. When in doubt, the safest decision is not to drive—reschedule the trip, delay departure, or ask a trusted friend or family member to drive, take a taxi, or book a rideshare.
Technology may offer additional support. Driver-alertness systems are increasingly common in vehicles, designed to detect signs of sleepiness and fatigue. Public appetite for such measures appears strong: an estimated 91 million U.S. adult drivers back requirements for alertness technology in all new vehicles, and a similar number favor including sleep and drowsy-driving education in driver licensing. However, adoption lags awareness. While 58% of adults are familiar with driver-alertness monitoring, only 31% have ever used it.
Trust remains a hurdle. About 62% of adults worry that data collected by alertness-monitoring systems could be misused. The NSF suggests that combining advanced technology with public education and data privacy protections can help build trust in systems designed to keep roads safer.
For readers, the message is immediate: recognizing warning signs early and prioritizing sleep are simple steps that can prevent crashes. The NSF’s resources, including tips and expert guidance, are available through its campaign and at (NewsUSA).
