Most drivers understand the dangers of drunk driving and texting behind the wheel. But there is another form of impaired driving that does not receive nearly enough attention: drowsy driving.

Driving while fatigued slows reaction time, impairs judgment, and can even cause a driver to lose consciousness behind the wheel for several seconds at a time. In 2021, drowsy driving contributed to approximately 684 collision deaths nationwide. Federal authorities believe the true number is significantly higher, because fatigue-related evidence at crash scenes is often difficult to identify.

For North Carolina drivers especially those taking long road trips along I-40, I-95, or the state’s rural highways understanding the causes, warning signs, and legal implications of drowsy driving accidents is essential. If you have been injured by a fatigued driver, the personal injury attorneys at Daughtry, Woodard, Lawrence, & Starling can help you explore your legal options.

Why Drowsy Driving Is So Dangerous

Drowsy driving is a form of cognitive and physical impairment that affects a driver’s ability to operate a vehicle safely. Unlike other distractions that may last only a moment, fatigue degrades a driver’s performance continuously over time. The longer a fatigued driver stays behind the wheel, the greater the risk becomes.

Fatigued drivers experience slowed reflexes, reduced attention spans, and impaired decision-making. Many do not notice hazards quickly enough to react. Research has shown that being awake for 18 consecutive hours produces impairment comparable to having a blood alcohol concentration of 0.05 percent. At 24 hours without sleep, impairment is similar to a BAC of 0.10 percent well above North Carolina’s legal limit.

Despite these risks, drowsy driving continues to trend upward. This means you are more likely to encounter a fatigued driver on the road now than ever before.

The Danger of Microsleep Behind the Wheel

One of the most dangerous and least understood risks of drowsy driving is microsleep brief, involuntary episodes of unconsciousness that last only a few seconds. Microsleep can occur as quickly as the blink of an eye, and many drivers do not even realize it has happened.

A few seconds may not sound significant, but at highway speeds the consequences can be catastrophic. A vehicle traveling at 65 miles per hour covers nearly 100 feet per second. In just two or three seconds of microsleep, a driver can drift across the centerline into oncoming traffic, veer off the road into a ditch, or fail to notice that vehicles ahead have come to a stop.

These are among the most common types of drowsy driving crashes in North Carolina: head-on collisions from crossing the median, single-vehicle run-off-road accidents, and rear-end crashes in slowing traffic. Each of these can result in catastrophic injuries or death.

Drowsy Driving Risks on Long Road Trips

Long road trips are one of the most common settings for drowsy driving accidents. Hours of continuous driving especially on monotonous highways or rural stretches can push even well-rested drivers toward dangerous levels of fatigue.

The risk increases significantly when drivers fail to prepare. Starting a trip after a full day of work, skipping rest breaks, or driving during hours when the body naturally craves sleep (typically between midnight and 6 a.m., or between 2 p.m. and 4 p.m.) all raise the likelihood of a fatigue-related crash.

Drowsy driving accidents also frequently occur on highways and rural roads where vehicles travel at high speeds. At these speeds, a fatigued driver’s delayed reaction time can turn a manageable situation into a devastating collision.

Common Causes of Drowsy Driving in North Carolina

Several factors contribute to drowsy driving on North Carolina roads:

Insufficient sleep. The most straightforward cause is simply not getting enough rest. Adults who sleep fewer than seven hours per night are significantly more likely to be involved in fatigue-related crashes.

Shift work and irregular schedules. Workers who rotate between day and night shifts or who work extended hours including healthcare professionals, truck drivers, and factory workers face elevated drowsy driving risk.

Untreated sleep disorders. Conditions like sleep apnea, insomnia, and narcolepsy can cause chronic fatigue that makes safe driving difficult or impossible, even after what appears to be a full night of rest.

Medications. Many prescription and over-the-counter medications including antihistamines, muscle relaxants, and certain antidepressants list drowsiness as a side effect. Drivers who take these medications without understanding the impact may be putting themselves and others at risk.

Alcohol consumption. Even small amounts of alcohol can intensify the effects of fatigue. A driver who is already tired and consumes a single drink may experience impairment that far exceeds what either factor would produce alone.

Warning Signs That You Are Too Tired to Drive

Recognizing the early signs of drowsy driving can help prevent a crash. Common warning signs include:

  • Frequent yawning or difficulty keeping your eyes open
  • Drifting from your lane or hitting rumble strips
  • Difficulty remembering the last few miles driven
  • Missing exits or traffic signs
  • Feeling restless, irritable, or unable to focus
  • Tailgating or inconsistent speed without realizing it

If you experience any of these warning signs, the safest response is to pull over and rest. Short-term interventions like caffeine or opening a window may provide a brief boost, but they are not substitutes for adequate sleep.

How to Reduce Your Risk of a Drowsy Driving Accident

Preparation is the most effective defense against drowsy driving. Before any long drive and especially before a road trip consider the following steps:

  • Get at least seven to eight hours of sleep the night before your trip
  • Avoid taking medications that cause drowsiness before driving
  • Plan rest stops every two hours or 100 miles
  • Travel with a passenger who can share driving responsibilities
  • Avoid driving during your body’s natural sleep windows (midnight–6 a.m. and 2–4 p.m.)
  • If you feel drowsy, pull over immediately a 20-minute nap can significantly improve alertness

Liability for Drowsy Driving Accidents in North Carolina

When a fatigued driver causes a collision, injured victims may have the right to pursue compensation for their medical expenses, lost income, pain and suffering, and other damages. Under North Carolina law, a driver who chooses to operate a vehicle while dangerously fatigued may be considered negligent.

However, proving that drowsiness caused an accident can be more challenging than proving other forms of distracted or impaired driving. Evidence that may help establish a drowsy driving injury claim includes:

  • The at-fault driver’s work schedule or travel itinerary showing extended hours without rest
  • Witness testimony that the driver appeared drowsy or was drifting between lanes
  • The absence of braking or evasive action before the crash
  • Crash characteristics consistent with drowsy driving (single-vehicle run-off-road, head-on collision)
  • Medical records showing the driver was taking medications known to cause drowsiness

An experienced car accident attorney can help investigate the circumstances surrounding a drowsy driving crash and build a compelling case for financial recovery.

Hurt by a Drowsy Driver? Contact Daughtry, Woodard, Lawrence, & Starling

Drowsy driving is a serious and growing threat on North Carolina roads. Whether a crash happens on a long highway trip, a late-night commute, or during everyday traffic, the injuries can change your life.

If a fatigued driver hurt you or someone you love, take the first step toward answers. Talk to an attorney who can review your case and explain your options.

Our team at Daughtry, Woodard, Lawrence, & Starling has decades of experience helping crash victims across North Carolina. We will investigate your case, gather the evidence you need, and fight to get you the recovery you deserve.

author avatar
Andrew J. Dickerhoff Associate Attorney
Andrew J. Dickerhoff has been an associate at Daughtry, Woodard, Lawrence & Starling since 2018. His practice includes criminal law, civil litigation, collections, and estate planning. A graduate of NC State and NCCU Law, Andrew is known for his strong advocacy and respected presence in the Sampson County legal community.