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How Much Sleep Do Children Need? An Age-by-Age Guide for Parents

By the Parent Homework editorial team, 29 October 2026

Ask any parent what they would change about their household and the answer is often the same: more sleep. Sleep is not a luxury for children. It is when their bodies grow, their brains consolidate what they learned during the day, and their immune systems recharge. Yet it is also one of the first things to slip when schedules fill up with homework, activities and screens.

This guide explains how much sleep children need at each stage, what a healthy bedtime routine looks like, and when it is worth talking to your child's doctor.

Why sleep matters so much for growing children

During deep sleep the body releases growth hormone, repairs tissue and strengthens the immune system. At the same time, the brain sorts through the day's experiences, moving important memories into long-term storage. Children who sleep well tend to find it easier to pay attention, manage big feelings and get along with friends. Children who are short on sleep often do not look tired in the way adults do. Instead they may seem hyperactive, cranky, forgetful or unusually clumsy.

Recommended hours of sleep by age

The figures below follow the 24-hour movement guidelines used in Canada. They include naps for the youngest children and describe a healthy range rather than a strict target. Some children will sit comfortably at the lower end, others at the upper end.

Age	Recommended sleep (24 hours)	What to expect
0 to 3 months	14 to 17 hours	Short sleep cycles spread across day and night
4 to 11 months	12 to 16 hours	Longer night stretches, two to three naps
1 to 2 years	11 to 14 hours	One or two naps, strong bedtime preferences
3 to 4 years	10 to 13 hours	Naps fade; bedtime resistance is common
5 to 13 years	9 to 11 hours	Homework and activities begin to compete with bedtime
14 to 17 years	8 to 10 hours	Body clock shifts later; early school starts hurt

Building a bedtime routine that works

Children thrive on predictability. A short, calm sequence of steps signals to the body that it is time to wind down. The routine does not need to be elaborate. Twenty to thirty minutes is plenty, as long as the order stays the same from night to night.

Pick a realistic bedtime. Work backwards from the wake-up time and the hours your child needs, then protect that time slot.
Dim the lights. Lower lighting in the hour before bed helps the body produce melatonin, the hormone that makes us sleepy.
Switch off screens early. Aim to put tablets, phones and television away at least an hour before bed. Charge devices outside the bedroom.
Keep the steps simple. Bath, pyjamas, teeth, a story, lights out. Repeat nightly.
Make the bedroom sleep-friendly. Cool, quiet and dark works best. A small night light is fine for children who are afraid of the dark.
Offer connection, then goodnight. A few minutes of talking or reading together can prevent the "one more thing" requests that stretch bedtime.

Tips for different age groups

Babies and toddlers

Follow your baby's sleepy cues, such as rubbing eyes or fussing, and aim to put them down drowsy but awake when possible. Always follow safe sleep guidance: a firm, flat surface, on the back, with nothing loose in the crib. For toddlers, a consistent naptime and a favourite comfort object can make transitions easier.

Preschoolers

Bedtime battles are common at this age because children are discovering independence. Offer two limited choices, such as which pyjamas or which book, so they feel in control while the routine stays fixed.

School-age children

Homework, sports and social plans can quietly eat into sleep. Review the weekly schedule together and protect bedtime the way you would protect a medical appointment. Limit caffeine, including energy drinks and some sodas, especially in the afternoon and evening.

Teenagers

Puberty shifts the body clock later, so teens genuinely feel more awake at night. Help them by keeping weekend wake-up times within an hour or two of weekday times, getting morning daylight, and keeping phones out of the bedroom overnight.

Signs your child may not be getting enough sleep

Difficulty waking up in the morning, even after a full night in bed
Falling asleep in the car or during quiet activities
Mood swings, irritability or frequent meltdowns
Trouble concentrating or remembering things at school
Hyperactive behaviour late in the day

When to talk to a health professional

Occasional bad nights are normal, especially during illness, travel or big life changes. Speak with your family doctor or pediatrician if your child snores loudly most nights, pauses in breathing while asleep, regularly has night terrors or sleepwalking, struggles to fall asleep for weeks, or seems exhausted despite sleeping enough hours. These can be signs of conditions that are very treatable once identified.

What to take away

Healthy sleep is built from small, repeatable habits: a steady schedule, a calm wind-down, a comfortable room and screens that go off early. Start with one change this week, such as moving the tablet out of the bedroom, and add another when that feels natural. Within a few weeks, most families notice calmer mornings and easier evenings.