How Much Sleep Does a Child Need at Each Age, and What Helps at Bedtime?

How much sleep does a child need? It depends on age. Commonly used consensus ranges run from about 12 to 16 hours a day (naps included) for babies to about 8 to 10 hours for teenagers, and individual children vary. A consistent bedtime, a calm wind-down routine and a dark, screen-free bedroom can help. This article covers the ranges by age, safe infant sleep, bedtime strategies, and signs that call for medical care.

How much sleep does a child need at each age?

The ranges below come from the American Academy of Sleep Medicine consensus statement "Recommended Amount of Sleep for Pediatric Populations" (2016). They describe total sleep over 24 hours, so naps count. They are general guides, not targets that every healthy child must hit.

That statement does not give a range for babies under 4 months. Newborns younger than about four months sleep in many short stretches across day and night, and the amount varies widely from baby to baby. Their patterns are still developing, so a fixed hour target is less useful at this stage.

Some children seem to do well at the lower end of their range and others need the upper end. A better test than the clock is how your child behaves during the day. A child who wakes easily, is mostly even-tempered and can focus is often getting enough rest.

What sleep looks like as children grow

Babies and toddlers

Babies wake to feed, and night waking is a normal part of infancy. Over the first year, many begin to sleep longer stretches at night and take a few daytime naps. Toddlers usually move toward one afternoon nap, and many drop it somewhere in the preschool years. MedlinePlus has general guidance for parents on infant and newborn care and toddler health.

Toddlers often test limits at bedtime. Requests for water, one more story or one more hug are common, and they usually reflect a wish for connection and a growing sense of independence.

School-age children

Homework, sports, early school start times and screens can all squeeze sleep. Children this age often need less help falling asleep but more help protecting the time, because a late bedtime and an early alarm cut sleep from both ends.

Teenagers

Puberty is associated with a later body-clock rhythm, which can make teens sleepy later at night and slow to wake early. Early school start times can leave them short of the suggested 8 to 10 hours. MedlinePlus offers teen health resources, and its healthy sleep page covers sleep basics for all ages.

Safe sleep for babies

For infants, how they sleep matters as much as how long. MedlinePlus's page on sudden infant death syndrome (SIDS) describes risk-reducing steps. The commonly recommended ones are:

• Place your baby on their back for every sleep, including naps, and make sure other caregivers do the same.
• Use a firm, flat sleep surface made for infants.
• Keep soft bedding, pillows, bumpers and toys out of the sleep space.
• Avoid letting your baby overheat while sleeping.
• Share a room with your baby without sharing a bed, and do not place a baby to sleep on a sofa or armchair.

Ask your pediatrician about safe sleep for your baby's situation, including swaddling, sleeping location and any medical condition that might change the advice. Sleep strategies written for older children, such as letting a child fall asleep with a blanket or stuffed animal, do not apply to infants.

What helps at bedtime

No single method works for every child. Many families find that several of these steps together can make bedtime smoother.

Keep a predictable routine

A short sequence in the same order each night, such as bath, pajamas, teeth, a book and lights out, gives a child's body and mind cues that sleep is coming. Twenty to thirty minutes is a reasonable length for many families, and the exact steps matter less than the consistency. Research summarized in PubMed Central, including a longitudinal study of childhood bedtime and sleep routines, has linked regular routines and earlier bedtimes in childhood with healthier weight later on. These are associations in observational studies, and they do not show that bedtime alone causes the difference.

Aim for a consistent bedtime and wake time

Large swings between school nights and weekends can shift a child's body clock and make Sunday and Monday harder. Keeping wake-up times reasonably close across the week can help. A study of bedtime in preschool-aged children and risk for adolescent obesity found an association between later bedtimes and later weight outcomes, though many other factors contribute.

Make the bedroom support sleep

• Keep the room dark, quiet and comfortably cool.
• Use a dim night light if your child is afraid of the dark.
• Keep the bed for sleep, not for homework or play, once children are old enough for that rule.

Set limits on screens and stimulation

Bright screens, exciting games and videos close to bedtime can delay sleep. Many families set a screen-off time before the wind-down routine begins and keep devices out of bedrooms overnight. Our article on screen time for children goes deeper on this topic.

Watch food, caffeine and activity

Caffeine in soda, energy drinks or tea can interfere with sleep, especially in the afternoon and evening. A light snack can help if hunger keeps a child awake, while a large meal right before bed may be uncomfortable. Daytime outdoor light and physical activity can support better sleep at night.

Respond to bedtime resistance calmly

If a child keeps getting out of bed, walk them back with minimal talk and little fuss. Some children respond well to a short "bedtime pass" for one request, such as water or a hug. Praise the nights that go well. Strategies for toddlers and preschoolers differ from those for teens, so your pediatrician can help match the approach to your child's age and temperament.

Melatonin and other sleep aids

Melatonin is sold as a dietary supplement. It is not approved in the United States as a treatment for sleep problems in children, its long-term safety in children is not well established, and the amount in a product can differ from what the label states. Sleep difficulties are worth a conversation with your pediatrician before any supplement is considered, since they can look for other causes and check for interactions with other medicines. Do not choose a dose by weight or age on your own; ask your child's pediatrician or pharmacist, and follow the product label.

Keep all supplements and medicines out of children's reach, since gummy-style products can look like candy. Accidental swallowing is a recognized reason for poison center calls. If a child may have swallowed too much, call Poison Control at 1-800-222-1222. Call 911 if the child is hard to wake or having trouble breathing.

When sleep trouble may be a medical problem

Most bedtime struggles are behavioral and improve with routine, but some point to something that deserves evaluation. Clinicians combine your description, an examination and sometimes testing to sort this out. MedlinePlus lists several sleep disorders.

Loud snoring and breathing pauses

Occasional snoring with a cold is common. Frequent loud snoring, gasping, snorting or pauses in breathing during sleep may be associated with sleep-disordered breathing, including obstructive sleep apnea. MedlinePlus has a page on snoring, and enlarged adenoids or tonsils are one reason a child's airway may narrow during sleep. A clinician may examine the airway, ask about snoring and daytime behavior, and sometimes arrange an overnight sleep study. Treatment depends on the cause and may include evaluation of the tonsils and adenoids, and some children are referred to a sleep specialist or ear, nose and throat doctor.

Daytime sleepiness, hyperactivity or mood change

Poor sleep in children can look like sleepiness, but it can also look like irritability, hyperactivity, trouble paying attention or emotional outbursts. These signs have many possible causes, so tell your clinician if they continue despite adequate time in bed. Anxiety can also keep children awake. Our article on signs of anxiety in children parents often miss covers that angle, and MedlinePlus has child mental health resources.

Other patterns to mention to your clinician

• Night terrors, with screaming and no memory of the episode, are common in toddlers. We cover them in a separate article.
• Sleepwalking that leads to unsafe situations or injury.
• Creepy-crawly leg sensations or an urge to move the legs at bedtime.
• Long delays falling asleep that last for weeks despite a steady routine.
• Large changes in a child's sleep after a stressful event, illness or new medicine.
• A first brief seizure that has stopped, which should be seen by a clinician the same day.

Emergency signs

Some situations during sleep need 911 right away. They include an infant who is unresponsive or not breathing, a child with blue or gray lips or face, a child who is limp or cannot be woken despite shaking and calling, a seizure lasting five minutes or longer, repeating, or followed by trouble breathing, and a child with struggling, labored breathing. Brief grogginess or confusion on waking from deep sleep that settles within minutes is common. The emergency box below lists these in more detail.

When to Seek Medical Care