Driving Home After a Night Shift: Why It's Risky and What to Do Instead

Why driving home after a night shift is risky

Two things stack up at the end of a night shift. You've been awake a long time, and the drive often lands in or near the hours when drowsy-driving crashes are most common.

The National Highway Traffic Safety Administration (NHTSA) says drowsy-driving crashes "occur most frequently between midnight and 6 a.m., or in the late afternoon," when people hit dips in their circadian rhythm, the body's internal clock. Those crashes often involve a single driver running off the road with no sign of braking, and they frequently happen on rural roads and highways.

The clearest evidence for night workers comes from a study at Brigham and Women's Hospital and Harvard Medical School, published in PNAS. Sixteen people who actually work nights each drove an instrumented car for two hours on a closed test track, once after a night of sleep and once after a night shift:

• After the night shift, there were 11 near-crashes in 6 of the 16 drives (37.5%). After sleep, there were none.
• 7 of the 16 post-shift drives (43.8%) were stopped early for safety because the driver couldn't keep control of the car. None of the post-sleep drives were.
• Lane excursions, blink duration and slow eye movements were all higher after the night shift.
• Every near-crash happened at least 45 minutes into the drive.

That last finding is worth sitting with. Feeling fine when you pull out of the lot doesn't tell you how you'll feel 45 minutes later. The researchers saw drowsiness get worse the longer people drove, which matters most if your commute is long.

The National Sleep Foundation (NSF) puts it plainly: "Young drivers (aged 16-25 years) and shift workers are at greatest risk of falling asleep behind the wheel."

New research points the same way. In a November 2026 BMJ Open survey of NHS hospital shift workers, 31% (135 of 443) reported one or more accidents or near misses in the past year because of sleepiness. Two caveats: that question lumped motor vehicle, home and work accidents together, and volunteers who already had sleep problems may have been more likely to answer.

How big is the drowsy driving problem?

Bigger than the official counts show, and the agencies say so themselves.

• NHTSA counted 644 deaths from drowsy-driving-related crashes in 2024.
• NHTSA also estimates that in 2017, 91,000 police-reported crashes involved drowsy drivers, injuring about 50,000 people and killing nearly 800. It adds that there is "broad agreement across the traffic safety, sleep science, and public health communities that this is an underestimate."
• The NSF, citing the AAA Foundation for Traffic Safety, says drowsy driving kills an estimated 6,400 people a year in the U.S.

Why the gap? Police counts depend on clues at the scene, and NHTSA notes those clues "are not always identifiable or conclusive." Research estimates that look at the problem other ways come out higher.

It's also common. In the NSF's 2026 Drowsy Driving survey, about 61% of U.S. adult drivers (more than 145 million people) said they have driven drowsy at least once, and nearly 35 million do it at least monthly.

Why do you fall asleep driving home from work?

Because after a night shift, almost everything about the drive works against you.

• Your body clock is pushing toward sleep. The early morning sits right after NHTSA's midnight to 6 a.m. dip, and your body hasn't flipped just because your schedule did.
• You've been awake a long time. In the PNAS study, drivers had been awake an average of about 12.8 hours before the post-shift drive, versus about 5 hours before the post-sleep drive.
• The drive itself is dull. NHTSA lists "a late or long shift at work" and "a long and monotonous drive" among the everyday causes of fatigue. A familiar route you could drive half asleep is exactly the problem.
• Short sleep catches up with you. The NSF says "drivers who've only slept 3 to 5 hours in the last 24 hours are unfit to drive." After a run of nights, that's a lot of people.

The scary part is how fast it happens. NHTSA says a seriously sleep-deprived driver can have "micro sleeps," brief losses of consciousness that last four or five seconds. At 55 miles per hour, that's "more than 100 yards down the road while asleep."

If falling asleep on the way home is happening again and again, don't write it off as part of the job. Bring it up with your doctor, and read our guide on how to stay awake on night shift for the at-work side of the problem.

Tips for driving home after a night shift

These are in order, from safest to last resort.

1. Don't drive if you're very sleepy. Get a ride from a family member, friend or coworker, take a taxi, rideshare or transit, or set up a carpool. The American Academy of Sleep Medicine's SleepEducation.org says to "arrange for someone to pick you up after a night shift or take a bus or cab home," because drowsy driving puts your life and other drivers' lives at risk.
2. Sleep before you drive. If you can rest at or near work, sleeping before you get behind the wheel is safer than pushing through. If your workplace has a quiet room, ask about using it at the end of a shift, not only on breaks.
3. Skip alcohol. NHTSA says alcohol "interacts with sleepiness to increase drowsiness and impairment." That includes the after-shift drink before the drive.
4. Check your medicine labels. NHTSA says to check prescription and over-the-counter labels for drowsiness, and to use public transportation when possible if a medicine can make you drowsy.
5. Be careful with sunglasses. SleepEducation.org says sunglasses on the way home can help you fall asleep faster once you're there, and the AASM's 2026 shift work disorder guideline lists light-filtering strategies on the commute home. If tinted lenses make the road harder to see, put them on when you park, not before.
6. Don't count on coffee or an energy drink. NHTSA says "drinking coffee or energy drinks alone is not always enough." The effects last only a short time, and you might not be as alert as you think you are.

What to do if you start falling asleep while driving

Know the warning signs first. The NSF lists "blinking, head-nodding, and lane drift," and NHTSA adds "crossing over roadway lines or hitting a rumble strip." In the NSF's 2026 survey, about 40% of adult drivers didn't recognize those basic signs.

If you notice any of them:

• Pull off at the first safe place. NHTSA points to "a lighted, designated rest stop."
• Take a short nap. NHTSA describes "a short 20-minute nap in a safe place." It says the boost in alertness lasts only for short time periods.
• Call for a ride if you still have far to go. A nap buys you a little time, not the rest of the trip.

Coffee or an energy drink is not a fix either. NHTSA says caffeine alone is not always enough, and you may not be as alert as you think you are.

Make the drive part of your shift plan

The drive home is easiest to fix before the shift starts, when you're still thinking clearly. A short checklist:

• Know your ride options for the morning: who you can call, and the rideshare or transit route you'd use.
• Ask whether there's a place to rest at work before you leave.
• Tell someone at home when you're leaving and when you expect to arrive.
• On the last night of a long run, assume you'll be more tired than usual and plan the ride ahead of time.

For what to do once you're through the door, see how to sleep after night shift. For the whole 24 hours around a night, our list of tips on how to survive night shift covers sleep, light and the days off.

Our recommendation: STAT Energy Bar

STAT Energy Bar is for the shift, not the drive. Nothing you eat or drink makes it safe to drive drowsy. What a bar can do is cover the hours at work when there's no time to stop for a meal.

STAT Energy Bar: 100 mg caffeine, 16-19 g protein, 0 g added sugar.

If you like chocolate, the Chocolate bar (16g protein) uses coffee fruit extract. If you're a coffee person, Peanut Butter Espresso (17g) and Salted Caramel Coffee (19g) use real coffee plus coffee fruit extract. Each bar is sealed, individually wrapped and shelf-stable, with no refrigeration needed, so a couple can live in your locker with the rest of your night shift snacks. All three contain milk and soy; Chocolate and Salted Caramel Coffee contain almonds, and Peanut Butter Espresso contains peanuts. Compare all three panels on STAT by the numbers, or start from the shop.

Not sure which flavor fits? Variety, 3 Boxes has one 12-count box of each. Subscribe and save 10%, and orders over $50 ship free.

Driving home after a night shift: FAQ

How do you drive home safely after a night shift?

Decide before you clock out. If you're very sleepy, get a ride, take transit or a rideshare, or sleep before you leave. If you do drive, skip alcohol, know the warning signs, and pull over at a safe place to nap if you start drifting. NHTSA says coffee or energy drinks alone are not always enough.

Why do I fall asleep driving home from work?

After a night shift you're driving near a low point in your body clock after a long time awake, often on a familiar, monotonous route. NHTSA says drowsy-driving crashes happen most often between midnight and 6 a.m. and in the late afternoon, when the body clock dips.

What to do when falling asleep while driving?

Pull off at the first safe place, such as a lighted, designated rest stop, and take a short nap of about 20 minutes, or call for a ride. NHTSA says the alertness boost from a nap lasts only a short time, so get a ride if you still have far to go.

How to stay awake driving home after night shift?

There's no reliable trick. NHTSA warns that coffee or energy drinks alone are not always enough, and a seriously sleep-deprived driver can have micro sleeps of four or five seconds. The safer answer is not to need one: get a ride, take transit, or sleep before you drive.

What are the warning signs of drowsy driving?

Frequent blinking, head-nodding, drifting out of your lane, crossing lines and hitting rumble strips. The National Sleep Foundation found that about 4 in 10 adult drivers don't recognize these basic signs.

Are shift workers more likely to fall asleep driving?

Yes. The National Sleep Foundation says young drivers and shift workers are at greatest risk of falling asleep behind the wheel. In a 2016 test-track study, drives after a night shift had near-crashes in 6 of 16 drives, compared with none after a night of sleep.

The drive home is the last part of the shift, and it's the one most people don't plan. Line up a ride or a nap before you need it, and know the signs. For the hours at work, shop all three STAT flavors.

References

1. National Highway Traffic Safety Administration. Drowsy Driving. https://www.nhtsa.gov/risky-driving/drowsy-driving
2. National Sleep Foundation. Drowsy Driving Prevention (includes the 2026 Drowsy Driving survey). https://www.thensf.org/drowsy-driving-prevention/
3. Lee ML, et al. High risk of near-crash driving events following night-shift work. Proc Natl Acad Sci U S A. 2016;113(1):176-181. PMID 26699470. https://pmc.ncbi.nlm.nih.gov/articles/PMC4711869/
4. American Academy of Sleep Medicine. Shift Work. SleepEducation.org. https://sleepeducation.org/sleep-disorders/shift-work/
5. American Academy of Sleep Medicine. New guideline provides recommendations on managing shift work disorder (guideline published Oct 24, 2026). https://aasm.org/new-guideline-provides-recommendations-on-managing-shift-work-disorder/
6. Sugavanam T, et al. BMJ Open. 2026;16(11):e118265. https://bmjopen.bmj.com/content/16/11/e118265
7. STAT Nutrition Facts panels and ingredient lists. https://statbar.com/stat-by-the-numbers