Warning signs
Repeated yawning, heavy eyelids, long blinks, lane drift, hitting a rumble strip, missing exits, and not remembering the last few kilometres all require action.
What actually helps
Adequate sleep is the foundation. If sleepiness starts on the road, pull over safely. A short nap and caffeine may offer only short-term help; severe sleep deprivation still makes driving unsafe.
Higher-risk times
NHTSA identifies midnight to 6 a.m. and late afternoon as common periods for drowsy-driving crashes, reflecting normal circadian dips.
Where EyeJolt fits
EyeJolt is a consumer alertness aid. It does not make driving fatigued safe, replace a vehicle monitoring system, or guarantee that an episode will be detected.
Why crash counts are uncertain
Drowsiness can be difficult to establish after a crash because there is no simple roadside test and the driver may not remember a brief sleep episode. Reported counts and research estimates therefore differ.
Employers and fleets
Work-related driving needs scheduling, hours controls, rest opportunities, reporting, and an organisational fatigue-risk system. A personal phone alert is not a substitute for those controls.
Frequently asked questions
What should I do if I feel sleepy while driving?
Pull over at a safe, legal place and rest. Change drivers or arrange another way to travel when needed.
Does opening a window prevent drowsy driving?
No. Cold air, loud music, and willpower do not remove biological sleep pressure.
Can a phone app make tired driving safe?
No. A phone app may provide an additional warning but cannot restore sleep or guarantee detection.
When are drowsy-driving crashes more common?
NHTSA highlights midnight to 6 a.m. and late afternoon as common high-risk periods, though fatigue can affect any journey.
Sources
Written by the EyeJolt Editorial Team. Published and last reviewed 2026-07-14. Editorial policy.