Is it illegal to sleep in your car?

If you're found sleeping in your car and you're over the legal limit, you could get a £2,500 fine, 10 points on your licence or go to prison.

But in some circumstances, it is legal to sleep in your car. For example, if you feel tired while you're driving, you're encouraged to take a break.

But before you park up and catch some Z's, make sure you're following the Highway Code rules for parking. That way you can kip in your car safely and legally. 

When is it illegal to sleep in your car?

It's illegal to sleep in your car if you're under the influence of alcohol or drugs and you were driving or intending to drive. But if you can prove you weren’t driving (or intending to drive) while under the influence, you might not get a penalty.

The law states that:

'...A person shall be deemed not to have been in charge of a vehicle if they prove that at the material time the circumstances were such that there was no likelihood of them driving it so long as they remained unfit to drive through drink or drugs.'

In short, it's up to you to prove that you weren’t going to use the vehicle. But the police might believe you were trying to drive the vehicle under the influence if you:

• Attempted to gain entry to the vehicle and failed
• Had keys to the vehicle on you
• Intended to take control of the vehicle

It all depends on context and intention. If the police believe you were intending to drive under the influence, you could get:

• 3 months’ imprisonment
• Up to £2,500 fine
• A driving ban

In more serious cases, you could get even longer in prison and an unlimited fine.

Having a drink-driving-related conviction could increase the cost of your car insurance. And remember, a drink driving ban could stop you travelling abroad. 

What does the Highway Code say about sleeping in the car?

As long as you're not under the influence, you should be able to sleep in your car. But you need to be parked safely.

In some cases it's even encouraged. Rule 91 of the Highway Code recommends taking a 'minimum break of 15 minutes after every 2 hours of driving'.

If you’re feeling especially tired, it suggests drinking '2 cups of caffeinated coffee and taking a ‘short nap’ for at least 15 minutes.'

Other than this, it doesn't mention sleeping in your car specifically, but it does mention some key things about parking safely. So, if you're stopping for a snooze, follow these rules:

• Don't park facing against the traffic flow.
• Stop as close as you can to the side, for example, the kerb.
• Don't stop too close to a vehicle displaying a blue badge, as the driver may need more room to get in or out.
• Switch your engine off as well as the headlights and fog lights.
• Apply your handbrake before leaving the vehicle.
• Put all valuables out of sight and make sure your vehicle is secure.

If you're staying overnight, you shouldn't park in any areas where there are restrictions on parking. You shouldn't leave your car in a dangerous position either. If you do, you could cause 'unnecessary obstruction' of the road and get a fine and points on your licence.

There are some places you should avoid parking overnight. For example, you should also never stop and park:

• Near a school entrance
• Anywhere that could prevent access for emergency services
• At or near a bus, tram stop or taxi rank
• On the approach to a level crossing/tramway crossing
• Opposite or within 10 metres (32 feet) of a junction, unless there's an authorised parking space
• Near the brow of a hill or hump bridge
• Opposite a traffic island
• Opposite another parked vehicle if this causes an obstruction
• Anywhere that could force traffic into a tram lane
• In front of a lowered kerb that helps wheelchair users and powered mobility vehicles
• In front of an entrance to a property, for example, you should never block a driveway
• On a bend
• Anywhere you could obstruct cyclists’ use of cycle facilities, except if you're forced to do this by stationary traffic.

In some areas, it's also illegal to park on the pavement, so be wary of this if you're parking overnight.

Where can you park up and sleep overnight?

If you're intending to sleep in your car, make sure you look for a safe place to park. It's legal to park on residential streets, but be aware of any parking restrictions. For example, you can't pull up and park on double yellow lines overnight.

Car parks also implement local byelaws that prevent overnight stays, especially in town centres or coastal locations. Some may lock their gates overnight or have a 24-hour charging system in place – which could make for an expensive night’s stay.

Don't trespass onto private land either, you could get a rude awakening from the police if you’re reported.

You should never stop on the hard shoulder for a snooze. The hard shoulder is for emergencies only.

Motorway services and sleeping in your car

You can stop in the motorway services for a short sleep if you need to. Many are available 24/7.

You can also use the facilities after you've had sleep too. All motorway service operators offer free parking for up to 2 hours, according to Moto-way.

Make sure you set an alarm though, as after 2 hours you’re liable for a charge. But not all service stations are the same. Some have strict limits on how long you can stay.

Most service stations have automatic number plate recognition (ANPR) systems. These cameras monitor cars entering and exiting to catch drivers who overstay.

Looking for the best service station in the UK? Look no further. Read our guide on the best UK service stations ranked.

Sleeping in lorries, caravans and motorhomes

The same rules apply for sleeping in lorries, caravans and motorhomes. If you're not under the influence and you're parked somewhere safe and legal, you should be able to sleep in these vehicles.

Larger vehicles may find it harder to find safe parking, though. Many car parks have height restrictions, and local bylaws may prevent certain vehicles – like caravans or motorhomes – from parking overnight.

While it's not illegal to park a caravan on the road, make sure it’s not causing any obstruction or parked dangerously.

How to sleep in your car safely

If you're sleeping in your car, think about packing stuff in your boot to make you comfortable. For example:

• A pillow
• A sleeping bag and/or blanket
• Energy bars
• Snacks and water

All these items should be in addition to your emergency breakdown kit.

Remember, don’t park where you feel vulnerable. Lock your doors before you go to sleep. If it's a hot night, crack the window just enough to allow some fresh air in.

It’s best not to leave the air conditioner or heating on either. It’s bad for the environment, wastes fuel, and it’s placing unnecessary wear on the vehicle by running the engine. You could also get a fine for idling your engine.

Don’t leave your engine running in an enclosed space in particular, as there’s a small risk of breathing in noxious fumes.