All planning guidesDays out · 10 October 2026

How to Help Children Sleep in the Car

One minute you're answering the fifteenth question about how long is left. The next minute the back of the car is completely silent and your child is peacefully asleep.

Words by Family Days Out UK

All Ages: Suitable for the whole familyCar

One minute you're answering the fifteenth question about how long is left. The next minute the back of the car is completely silent and your child is peacefully asleep.

For many families, a sleeping child can transform a long car journey.

One minute you're answering the fifteenth question about how long is left. The next minute the back of the car is completely silent and your child is peacefully asleep.

Some children fall asleep almost as soon as the car starts moving.

Others seem determined to stay awake for the entire journey.

If you're travelling several hours for a family holiday, visiting relatives or returning home after a long day out, encouraging children to sleep can make the journey easier for everyone.

However, comfort should never come at the expense of safety.

Children need to remain correctly secured in an appropriate child car seat or seat belt throughout the journey. Avoid improvised sleeping arrangements or accessories that interfere with the restraint system.

Within those limits, there are plenty of ways to make sleeping in the car easier.

Time the Journey Around Normal Sleep

If you know your child normally naps at a particular time, consider whether you can make that work with your journey.

For example, if your toddler usually naps shortly after lunch, leaving around that time may increase the chances of them sleeping during part of the drive.

Likewise, some families choose to begin longer journeys close to bedtime.

This can work particularly well when children are comfortable travelling in the dark.

However, the driver's tiredness matters too.

Don't schedule an overnight journey simply because the children might sleep if it means the person driving will be dangerously tired.

The safest departure time is one where the driver is properly rested and alert.

Keep the Routine as Normal as Possible

Children often sleep better when familiar routines remain in place.

If you're travelling around nap time, follow as much of the normal routine as practical.

Have lunch.

Use the toilet.

Change the baby's nappy.

Get comfortable.

Then begin the journey.

For an evening drive, you might complete part of the bedtime routine before leaving.

Children could change into comfortable clothes, brush their teeth and have their normal bedtime story before getting into the car.

The environment is different, but the signals are familiar.

Don't Deliberately Exhaust Children

It can be tempting to keep children awake because you want them to sleep during the drive.

Sometimes this works.

Sometimes it produces an overtired toddler who screams for an hour before eventually falling asleep.

Children who become extremely tired can find it harder to settle.

Try to keep the day reasonably normal.

Let them play and use energy, but don't deliberately skip every nap or push them far beyond their normal bedtime purely to improve the chances of car sleep.

Make Sure They're Comfortable Before Leaving

Before beginning a long journey, deal with the basics.

Has your child eaten?

Have they had a drink?

Do they need the toilet?

Does the baby need changing?

Are they too warm?

Are they cold?

Is something uncomfortable underneath them?

It's difficult for anyone to sleep when they're uncomfortable.

A few minutes of preparation before leaving can prevent an unnecessary stop shortly afterwards.

Use the Correct Car Seat

Young children should travel using the appropriate child restraint for their age, size and the relevant legal requirements.

Make sure the seat is correctly installed and that the child is secured according to the manufacturer's instructions.

Don't loosen a harness because you think it will make sleeping more comfortable.

Don't remove parts of the restraint.

Don't improvise alternative sleeping positions.

A sleeping child needs the same level of protection as an awake child.

Check the Car Seat's Recline

Some child car seats provide approved recline positions.

These can sometimes make sleeping more comfortable, particularly for younger children.

Use only the positions permitted by the manufacturer and appropriate for your child's size and the seat's installation.

Never create additional recline by placing cushions, towels or other objects underneath or behind the car seat unless the manufacturer specifically instructs you to do so.

If you're unsure how your seat should be positioned, check its manual.

Avoid Unapproved Car-Seat Accessories

There are countless travel accessories marketed to parents.

Head straps.

Extra cushions.

Harness covers.

Seat inserts.

Pillows.

Before adding anything to a child car seat, check whether the seat manufacturer permits it.

Products placed around a child's head, neck, body or harness can potentially affect how the restraint performs.

The safest approach is to use the car seat as designed unless an accessory has been specifically approved for use with it.

Dress Children Comfortably

Comfortable clothing makes sleeping easier.

Choose soft layers rather than bulky outfits.

Very thick coats can also interfere with the correct fit of some child-seat harnesses.

During colder weather, secure the child correctly first and then use an appropriate blanket over them if necessary rather than putting bulky padding between the child and the harness.

Follow your car-seat manufacturer's instructions.

Keep the Car at a Comfortable Temperature

Cars can become surprisingly warm once everyone is inside.

A child who is too hot may struggle to sleep.

Keep the temperature comfortable and use ventilation appropriately.

Don't direct very cold air continuously at a sleeping baby or young child.

On sunny days, approved window shades may help reduce direct sunlight where they don't obstruct the driver's view.

Remember that the temperature can change considerably during a long journey.

Reduce Stimulation Gradually

If you want children to sleep, don't necessarily switch instantly from maximum entertainment to complete silence.

Gradually make the journey calmer.

Finish the game.

Put away the exciting toys.

Reduce conversation.

Turn down the music.

If children have been watching something, consider switching it off when they start becoming sleepy.

Let the atmosphere become boring.

In this particular situation, boring is useful.

Use Familiar Music

Some children settle well with familiar bedtime music.

Create a calm playlist before travelling.

It could include gentle music, familiar lullabies or songs your child normally hears before sleep.

Keep the volume low.

You don't need to make the entire car silent.

Consistent background sound can sometimes be more relaxing than constantly changing noise.

Try an Audiobook

For older children, an audiobook can bridge the gap between entertainment and sleep.

Choose something calm rather than an action-packed story that keeps them desperate to hear what happens next.

The combination of a steady voice and the movement of the car can be relaxing.

Download the audiobook before leaving so you're not dependent on mobile reception.

Keep Favourite Comfort Items Accessible

A familiar teddy or comfort item can help younger children settle.

If your child normally sleeps with a particular soft toy, bring it along where safe and appropriate.

Keep loose items sensible.

Don't fill the child's seating area with large toys, hard objects or unnecessary equipment.

Loose objects can also become hazards during sudden braking or a collision, so store unnecessary items securely.

Consider a Familiar Blanket

A familiar blanket can help create the feeling of bedtime.

Use it appropriately and never allow it to interfere with the child's harness or seat belt.

For babies and very young children, follow safe-sleep and car-seat guidance rather than trying to recreate a cot environment inside the vehicle.

Car seats are designed primarily for safe travel, not as substitutes for normal sleep spaces outside the car.

Deal with Sunlight

Bright sunlight shining directly onto a child's face can make sleep difficult.

An appropriate vehicle window shade may help.

Choose products that don't interfere with visibility or vehicle safety systems and install them according to their instructions.

Built-in window blinds are ideal where available.

Never hang improvised objects in a way that blocks the driver's view.

Avoid Sugary Excitement Just Before Sleep

A large collection of sweets immediately before the planned nap probably isn't the best preparation for winding down.

For long journeys, offer normal food and familiar snacks.

If children are hungry, feed them.

But try to transition towards a calmer period as their usual sleep time approaches.

The same applies to activities.

A quiet story is more likely to encourage sleep than an extremely competitive family game.

Make One Last Toilet Stop

For toilet-trained children, encourage a toilet visit before the part of the journey when you're hoping they'll sleep.

Nobody wants to hear:

“I need a wee.”

Three minutes after the child finally falls asleep.

If you're leaving home, use the toilet immediately before getting into the car.

If you're stopping at motorway services before continuing into the evening, encourage everyone to go before leaving.

Change Babies Before the Journey

A fresh nappy can make babies more comfortable during a longer drive.

Keep changing supplies somewhere accessible.

Don't bury the nappies underneath the holiday luggage.

If you need to stop, you want to be able to reach everything quickly.

Don't Expect Sleep Immediately

Your child may be tired without being ready to sleep.

They may spend the first 20 minutes looking out of the window.

That's fine.

Avoid repeatedly asking:

“Are you going to sleep?”

“Are you tired?”

“Why aren't you sleeping?”

Talking about sleep can keep children engaged with you.

Instead, create the conditions and let sleep happen.

Stop Entertaining Them

Parents often accidentally keep children awake.

We keep asking questions.

Pointing things out.

Offering snacks.

Starting games.

Changing music.

If your child looks sleepy, stop providing entertainment.

Allow the car to become quiet.

They may stare out of the window for a while before eventually falling asleep.

What If Their Head Falls Forward?

Parents often worry when a sleeping child's head changes position.

Whether a particular sleeping position is acceptable depends on the child's car seat, age, size and installation.

Don't add an aftermarket head strap or other device simply to hold the child's head in place.

Check that the car seat is correctly installed and using the appropriate manufacturer-approved recline position.

If you're concerned about your child's position, stop somewhere safe and check them rather than trying to adjust the seat while the vehicle is moving.

For persistent concerns, seek advice from the car-seat manufacturer or a qualified child-seat professional.

Never Unbuckle a Sleeping Child

A child may look uncomfortable while asleep.

That isn't a reason to loosen or remove their restraint while the vehicle is moving.

Keep them properly secured.

If something genuinely needs adjusting, stop in a safe location first.

Never attempt significant car-seat adjustments while driving.

Don't Let Children Sleep Lying Across the Back Seat

Older children may ask to lie across the rear seats on a long journey.

They should remain correctly seated and restrained.

The same applies when travelling late at night.

The fact that a child is asleep doesn't change the need for appropriate restraints.

Plan comfort around the safe seating position rather than changing the safe seating position to improve comfort.

Keep an Eye on Sleeping Babies

Babies can fall asleep very easily in moving vehicles.

Check them regularly.

For longer journeys, take appropriate breaks and remove babies from the car seat during stops rather than leaving them sitting in the same position indefinitely.

If another adult is travelling, they can help monitor younger children.

The driver should keep their attention on driving.

Take Regular Breaks

A sleeping child can create a temptation to keep driving.

“They're asleep — don't stop!”

But the driver still needs breaks.

Everyone benefits from stretching, fresh air, food, drinks and toilet visits during long journeys.

Don't compromise driver alertness simply to protect a child's nap.

If the driver is becoming tired, stop regardless of whether the children are asleep.

The Driver's Sleep Matters Most

Parents sometimes choose to drive through the night because the children will sleep.

This can create a serious problem if the driver would normally be asleep too.

Driving while tired is dangerous.

Children sleeping peacefully in the back doesn't make a fatigued driver safer.

If you're planning a very long journey, consider sharing the driving where possible, travelling during normal waking hours, stopping overnight or taking proper rest breaks.

No holiday timetable is more important than arriving safely.

If Your Child Wakes When You Stop

Some children wake the moment the engine switches off.

This can be frustrating, particularly when they have only slept for 20 minutes.

Don't skip an important safety break to protect the nap.

If the child wakes, use the opportunity.

Toilet.

Nappy.

Drink.

Snack.

Stretch.

Then continue.

They may fall asleep again once the vehicle starts moving.

If Your Child Won't Sleep

Sometimes all your planning achieves absolutely nothing.

The journey matches nap time.

The car is comfortable.

The music is quiet.

The child is clearly tired.

They remain awake.

Don't turn sleep into a battle.

Switch to calm entertainment.

An audiobook.

Quiet music.

Conversation.

Looking out of the window.

If they eventually fall asleep, great.

If not, you'll adjust the rest of the day accordingly.

Think About Arrival Time

A successful car nap can occasionally create another problem.

Your child sleeps for three hours and arrives at your holiday accommodation at 9pm completely refreshed.

Think about what the sleep will do to bedtime.

For younger children, this may not matter during a long travel day.

But if you're only 30 minutes from home and it's 5pm, allowing a child to begin a huge nap might make the evening interesting.

You won't always be able to control this.

Just be aware of it.

Let Sleeping Children Wake Naturally When Practical

If you've reached a safe destination and circumstances allow, some parents prefer to give a sleeping child a moment to wake gradually rather than immediately beginning a rush of activity.

However, never leave a child unattended in a parked car.

Cars can become dangerously hot or cold, and children should not be left alone simply to finish a nap.

Once you've arrived, supervise them and move them appropriately.

Don't Leave Sleeping Children Alone in the Car

This deserves particular emphasis.

Never leave a baby or child alone in a parked vehicle because you don't want to wake them.

Vehicle temperatures can change rapidly, particularly during warm weather.

Take the child with you.

An interrupted nap is inconvenient.

Leaving a child unattended in a vehicle can be dangerous.

Car Sleep Essentials

For longer journeys where children may sleep, consider having:

correctly fitted child car seat

comfortable clothing

appropriate layers

familiar comfort item

suitable blanket where appropriate

water

snacks

spare clothes

nappies and changing supplies

wipes

calm music

downloaded audiobook

approved window shade if needed

essential medication.

You don't need special equipment to make children sleep.

Comfort, routine and a calm environment usually matter more.

Don't Chase the Perfect Car Nap

Some children are brilliant car sleepers.

Others aren't.

One baby may sleep every time the engine starts.

Their sibling may remain awake for a five-hour drive despite being obviously exhausted.

You can improve the conditions, but you can't force sleep.

Plan the journey around normal sleep where practical.

Keep children comfortable.

Reduce stimulation.

Use familiar bedtime signals.

Make sure they're fed, hydrated and ready for rest.

Most importantly, keep them properly secured and never compromise car-seat safety simply to create a more comfortable sleeping position.

If they sleep, enjoy the peace.

If they don't, put on an audiobook and carry on.

And if every child in the car falls asleep at exactly the same time?

Whatever you do, don't celebrate too loudly.