Fatigue and Long-Distance Driving

By Stuart

Driver Safety

Beat fatigue on the long drive.

There's no trick that beats being tired at the wheel. Not coffee, not the window down, not the music up. Here's how to plan a long drive so you never find out the hard way.

R RAC School of Motoring Updated Jul 2026 4 min read

Spot the warning signs

A long drive lulls you. The road runs straight, the cabin is warm, and tiredness creeps in so quietly you don't notice until you've drifted. Your body warns you long before you fall asleep, but the signs are easy to explain away when you just want to get home. Treat any of them as a hard stop, not a suggestion.

🥱

Constant yawning

Your body asking for sleep, plainly.

👀

Heavy, stinging eyes

Blinking hard or struggling to focus.

🐢

Slow reactions

You notice hazards later than you should.

🛣️

Drifting in the lane

Wandering, or catching the rumble strip.

💭

Zoning out

You can't recall the last few kilometres.

😵‍💫

Restlessness

Fidgeting and shifting just to stay awake.

17hours awake

...affects you like a 0.05 blood alcohol reading.

Push it to 24 hours without sleep and you're driving as if you were twice the legal limit for a full licence. Tiredness isn't a mood, it's impairment, and the only thing that fixes it is rest.

When fatigue hits hardest

Tiredness isn't random. It follows your body clock, so some hours are far riskier than others. Where you can, plan the long stretches around them.

1am – 6amWhen your body most wants to be asleep. The riskiest window of all.

2pm – 4pmThe afternoon dip, even after a good night's sleep.

15 – 17 hrs upOnce you've been awake that long, your reaction time is already suffering.

After workThe end of a long day, before you've even started driving.

Plan the drive

Most fatigue crashes trace back to a trip that was in trouble before it began: too little sleep, too far in one go, no breaks built in. Sort the plan first and the drive largely looks after itself.

Before you go On the road Rest stops

Before you go

Get a proper night's sleep, 7 to 8 hours, the night before.
Don't start a long trip straight after a full day's work.
Plan the route and decide where you'll stop before you leave.
Check the weather, and share the driving if someone can help.

On the road

Take a break at least every 2 hours, sooner if you feel it.
Swap drivers regularly if you've got a second licensed driver.
Drink water, keep meals light, and skip the energy drinks.
The moment a warning sign shows up, pull over. Don't push on.

Rest stops

Use a marked rest area or a town, never the shoulder.
Get out and move, a short walk resets you more than you'd think.
Flagging badly? A 15 to 20 minute power nap in a safe spot.
A coffee then a nap beats a coffee on its own.

Common questions

Does coffee sober up a tired driver?

No. Caffeine can sharpen you for about 20 to 30 minutes, then the tiredness returns, often worse. It's useful to get you to a rest stop where you can actually sleep, but it never replaces sleep. The only real fix for fatigue is rest.

How long should a rest break be?

At least 15 minutes, and 30 to 60 is better on a long trip. Get out of the car, move around, and have some water. If you're genuinely drowsy, a 15 to 20 minute power nap in a safe rest area does far more than pushing on.

How far can I safely drive in a day?

As a rule of thumb, no more than 8 to 10 hours of actual driving, with a break at least every 2 hours. If your trip needs more than that, split it across two days rather than driving into the night.

Is a roadside power nap actually safe?

Yes, in the right place. Use a marked rest area or a quiet town street, lock the doors, set an alarm for 15 to 20 minutes, and expect to feel groggy for a few minutes when you wake. That short nap can be the difference on a long drive.

The road-safety figures here reflect Queensland and national transport guidance current in July 2026. This is general information to help you plan a safe trip, not medical or legal advice. If you regularly feel tired at the wheel despite enough sleep, it's worth seeing your GP.

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