Daily Wellness

How much sleep do kids need? Age-by-age guidelines and expert-backed tips for better bedtimes

Julie HoerthNatural Health Writer
3 min read
9-12 hrs Daily sleep needed for school-age children (6-12 years) per AASM guidelines
1 hour Screens off at least one hour before bedtime — one of the highest-impact sleep changes
65°F The optimal bedroom temperature for most people's sleep, according to research
Summary

Is your child actually getting enough sleep? This guide breaks down the sleep needs by age (infants through teens), what happens biologically during your child's sleep (immune support, memory consolidation, growth hormone release), and how to build a bedtime routine that actually works.* You'll also learn how AnxioCalm® — with clinically studied EP107™ — can help kids who struggle to wind down at bedtime.*†

Child reading a book in bed with a teddy bear and warm nightstand lamp, illustrating a calming bedtime routine that supports healthy sleep in kids.

Sleep is one of the three pillars of children's health—alongside nutrition and physical activity—and it's the one most likely to be quietly shortchanged. The American Academy of Sleep Medicine (AASM) has established consensus guidelines for pediatric sleep, and the research behind them is clear: children who consistently get enough sleep perform better in school, experience fewer behavioral and attention challenges, maintain healthier immune systems, and show better emotional regulation. Children who don't are at higher risk for weight gain, learning difficulties, mood instability, and reduced immune resilience. The first step to supporting better sleep in your household is knowing whether your children are actually meeting their sleep needs.

How much sleep do children need by age?

The American Academy of Sleep Medicine and the NIH provide the following consensus guidelines for daily sleep totals (including naps where applicable):

Infants (4–12 months): 12–16 hours per day, including naps

Toddlers (1–2 years): 11–14 hours per day, including naps

Preschoolers (3–5 years): 10–13 hours per day, including naps

School-age children (6–12 years): 9–12 hours per day

Teenagers (13–18 years): 8–10 hours per day

These aren't suggestions—they're evidence-based ranges developed through extensive review of pediatric health outcomes. Children who regularly sleep below these thresholds face measurably higher risks across multiple health domains. And while individual children vary, the majority of kids who seem to "be fine" on less sleep are running on a low-grade sleep debt that compounds over time.

A practical approach: work backward from your child's required wake-up time. If your 9-year-old needs to be up at 7:00 AM and requires at least 9 hours of sleep, bedtime should be 10:00 PM at the absolute latest—and 9:00 PM or earlier is preferable to provide a buffer. Most parents are surprised by how early the ideal bedtime actually is.

12-16h

Hours — Daily sleep for infants (4-12 months), including naps

10-13h

Hours — Daily sleep for preschoolers (3-5 years), including naps

8-10h

Hours — Daily sleep teenagers need (13-18 years) — even though their biology says "stay up later"

EP107™

Clinically studied echinacea extract in AnxioCalm® — for kids ages 4+ who struggle to wind down*†

Kid sleeping peacefully

What happens in the body during children's sleep

Sleep is not passive rest—it's one of the most biologically active periods in a child's day. During sleep, the immune system releases cytokines—signaling proteins that help coordinate immune response, and maintain overall immune readiness. 

During sleep, the brain processes and consolidates the day's learning—transferring information from short-term to long-term memory. Children who sleep enough before a school day retain and recall new information significantly better than sleep-deprived children. Emotional regulation is also processed during sleep: the prefrontal cortex (the brain region responsible for impulse control, emotional modulation, and decision-making) is highly dependent on sufficient sleep to function optimally. The tantrums, meltdowns, and behavioral challenges that appear in tired children are neurological—not disciplinary—in origin.

Physical growth follows a similar pattern. Growth hormone is primarily released during deep sleep stages, making consistent, quality sleep a genuine biological requirement for children's healthy physical development.

Explore our Kids' Wellness Essentials*

Building a bedtime routine that actually works

Routine and consistency: the most powerful sleep tool

The single most evidence-backed approach to children's sleep is a consistent, predictable bedtime routine. The brain responds to reliable sequences of behavior by beginning to prepare for sleep—cortisol drops, melatonin rises, and the nervous system shifts toward parasympathetic (rest and digest) dominance. A routine doesn't need to be elaborate; it needs to be consistent. A simple sequence—bath, teeth brushing, story, lights out—repeated at the same time every night trains the brain to recognize bedtime as non-negotiable. Consistency also means keeping wake times consistent, even on weekends. Irregular sleep schedules disrupt the circadian rhythm in ways that take multiple days to recover from—often right when Monday morning rolls around.

The bedroom environment

The bedroom should signal one thing: it's time to rest. This means keeping it cool (research points to approximately 65°F as the optimal sleep temperature for most people), dark (blackout curtains make a meaningful difference, especially in summer when daylight extends past bedtime), and quiet (or masked with consistent white noise if the household environment is variable).

Electronics in the bedroom are one of the most consistently documented disruptors of children's sleep quality and duration. The blue light emitted by screens suppresses melatonin production by tricking the brain's circadian system into interpreting the light as daytime. This isn't a mild effect—research has found that screen exposure in the hour before bedtime meaningfully delays sleep onset and reduces REM sleep quality. The recommendation from pediatric sleep specialists is clear: screens off at least one hour before bedtime, and no devices in the bedroom overnight for school-age children and teens. The same applies to teenagers who experience a natural biological phase delay in their circadian rhythm—while their bodies want to stay up later, the screen-melatonin suppression dynamic makes this natural tendency significantly worse.

Daytime habits that affect nighttime sleep

Good sleep hygiene starts during the day. Regular physical activity during daylight hours supports deeper, more restorative sleep at night—the body needs to expend energy to want to recover. Consistent meal times help regulate the circadian rhythm, as does exposure to natural light during the day, which anchors the body clock. Avoiding caffeine (found in sodas, energy drinks, chocolate, and some teas) is especially important for children, whose bodies metabolize caffeine more slowly than adults. Heavy or large meals close to bedtime can also disrupt sleep quality by keeping the digestive system active.

How a better bedtime routine helps kids sleep well
01
Consistency trains the brain

A predictable sequence at the same time every night trains the brain to start preparing for sleep — cortisol drops, melatonin rises. Simple is fine: bath, teeth, story, lights out. It just has to be consistent.

02
The right environment helps

The bedroom should signal rest: cool (around 65°F), dark (blackout curtains help, especially in summer), and quiet (or white noise). And screens off at least an hour before bed — blue light suppresses melatonin.

03
Botanical support for active minds*†

Some kids genuinely struggle to quiet their nervous system at bedtime. AnxioCalm® features clinically studied EP107™ — a specific echinacea extract that supports a calmer state without drowsiness or sedation. Safe for ages 4 and up.*†

When children have trouble winding down: a botanical option

Some children—even with an ideal routine, a calm environment, and appropriate sleep hygiene—have a genuinely difficult time quieting their minds and nervous systems at bedtime. Occasional anxious feelings or difficulty transitioning from active daytime mode to restful nighttime mode can make it difficult for some kids to fall asleep.  For these children, a targeted botanical supplement can help.*

AnxioCalm® features EP107™, a clinically studied extract of Echinacea angustifolia that contains brain-specific compounds shown to support GABA receptor activity—the brain's primary calming mechanism. While echinacea is widely known for immune support, the EP107 extract contains a distinct compound profile with different neurological properties. Research has demonstrated its ability to reduce feelings of occasional stress and anxiety and support a calmer, more relaxed state without drowsiness or sedation.*

It doesn't induce sleep directly—rather, it helps children reach the relaxed, settled neurological state that makes falling asleep easier. It's non-habit-forming, non-drowsy, and safe for children ages 4 and up. For kids who tend to lie awake with an active mind or who become anxious as bedtime approaches, AnxioCalm can be a genuinely useful addition to a consistent bedtime routine.*†

For additional support during busy, stressful school periods or seasonal transitions, Terry Naturally's kids' health supplement collection offers targeted formulas designed for children's specific needs.*†

†Occasional anxiety and stress.

Frequently Asked Questions

Have questions? Here the answers

  • The most effective bedtime routines share three characteristics: they're consistent (same time, same steps every night), calming (activities that wind down rather than excite the nervous system), and predictable (the child knows exactly what comes next, which reduces resistance). For school-age children, a typical effective routine runs 30–45 minutes and might include: screens off and a transition to quiet activity, a bath or shower (which helps lower core body temperature in ways that signal sleep onset), brushing teeth, 15–20 minutes of reading (physical books or e-readers without backlight), and lights out at the same time every night. Keeping the bedroom environment cool, dark, and device-free provides the physical conditions for the routine to work most effectively.

  • AnxioCalm is clinically studied and approved for ages 4 and up. It features EP107™, a specific standardized extract of Echinacea angustifolia studied for its brain-specific calming properties. It does not cause drowsiness, is not habit-forming, and works by supporting the brain'scalming pathway rather than inducing sedation. For children who struggle with occasional anxious feelings at bedtime, it can be a safe and effective complement to a consistent sleep routine.*

  • Yes. The blue light emitted by screens (phones, tablets, TVs, computers) suppresses melatonin production by signaling to the brain's circadian system that it's still daytime. Even 30–60 minutes of screen exposure before bed can delay sleep onset by 30–60 minutes and reduce the quality of early sleep cycles. The American Academy of Pediatrics recommends that screens be turned off at least one hour before bedtime for school-age children, and that no devices remain in children's bedrooms overnight. This is one of the single most impactful, no-cost interventions available for improving children's sleep.

  • The most common signs of insufficient sleep in children include: difficulty waking in the morning despite adequate time, persistent daytime sleepiness (falling asleep in the car, at school, or during quiet activities), and increased irritability, emotional volatility, or difficulty managing frustration, reduced ability to focus or pay attention.

  • According to the American Academy of Sleep Medicine and the NIH, school-age children aged 6–12 years should sleep 9–12 hours per 24-hour period. For a 7-year-old who wakes at 7:00 AM for school, that means a bedtime between 7:00–10:00 PM, with 8:30–9:30 PM being the most common target range. Individual children vary—the best indicator isn't the clock but whether your child wakes naturally feeling rested, maintains good mood and behavior throughout the day, and falls asleep reasonably quickly at bedtime. If they're consistently difficult to wake, unusually irritable, or struggling with attention, earlier bedtimes are worth trying.