Best Bedtime by Age: Kids vs Teens vs Adults

Last updated July 2026. Medically reviewed for accuracy. Reading time: approximately 12 minutes.

Category: Optimization — This article gives you a bedtime chart by age, explains why the right bedtime shifts across a lifetime, and shows you how to calculate your own with the Bedtime Calculator.

There is no single best bedtime. The right bedtime depends on your age, your wake-up time, and how many hours of sleep your body actually needs. A newborn needs 14 to 17 hours a day. A teenager needs 8 to 10. An adult needs 7 to 9. Each of these ranges points to a different ideal bedtime, and getting the age-based range right is the first step before you fine-tune anything else.

This guide gives you a clear bedtime chart broken down by age group, explains the biology behind each range, and shows you exactly how to calculate a personal bedtime using your own wake-up time. It also covers a common trap: assuming a "good" bedtime is the same for everyone, when in reality a bedtime that works well for a 40-year-old can be actively unhealthy for a 15-year-old.

If you want a number now rather than a general range, plug your age and wake-up time into the Bedtime Calculator at SleepDebtCalc.com for a personalized result.

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What Determines Your Best Bedtime?

Your best bedtime is set by three factors working together: how much sleep your age group needs, what time you have to wake up, and your personal chronotype. Sleep duration needs are the foundation — a young child simply requires more total sleep than an adult, so their bedtime has to be earlier relative to their wake time. Wake-up time is the second input, since bedtime is really just wake time minus your required sleep duration. Chronotype is the third factor: some people are naturally wired to fall asleep and wake up earlier ("larks"), while others run later ("owls"), and this tendency shifts predictably across a lifetime.

Age affects all three factors at once, which is why bedtime recommendations change so much from infancy through older adulthood. The next section gives the full breakdown.

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Best Bedtime by Age: The Full Chart

Recommended bedtimes range from as early as 6:00 PM for infants to as late as 11:00 PM for young adults, based on age-specific sleep duration guidelines from the American Academy of Sleep Medicine and National Sleep Foundation. The table below assumes a standard morning wake-up time for each age group and works backward using the low end of the recommended sleep range, so you can adjust based on your own schedule.

Age Group	Recommended Sleep	Typical Wake Time	Best Bedtime Range
Newborn (0–3 months)	14–17 hours (24-hr total)	Irregular	No fixed bedtime; sleep occurs in short bouts around the clock
Infant (4–11 months)	12–15 hours (with naps)	~7:00 AM	6:00–7:30 PM
Toddler (1–2 years)	11–14 hours (with naps)	~7:00 AM	7:00–8:30 PM
Preschooler (3–5 years)	10–13 hours (with naps)	~7:00 AM	7:00–8:30 PM
School-age (6–12 years)	9–12 hours	~6:30–7:00 AM	7:30–9:00 PM
Teenager (13–18 years)	8–10 hours	~6:30–7:00 AM	9:00–10:30 PM
Young adult (18–25 years)	7–9 hours	~6:30–7:30 AM	10:00 PM–12:00 AM
Adult (26–64 years)	7–9 hours	~6:30–7:00 AM	10:00–11:30 PM
Older adult (65+)	7–8 hours	~5:30–6:30 AM	9:00–10:30 PM

These ranges come directly from the two most-cited sleep duration guidelines in clinical use. A National Sleep Foundation expert panel established that appropriate sleep duration ranges from 14 to 17 hours for newborns down to 7 to 8 hours for older adults, with each age band in between assigned its own specific range. The American Academy of Sleep Medicine's parallel guidance confirms nearly identical numbers for children and teens, while its separate adult consensus statement recommends 7 or more hours per night for adults to promote optimal health. Because these are ranges, not single numbers, use the chart as a starting point and adjust based on how you or your child actually feel.

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Best Bedtime for Babies and Toddlers (0–2 Years)

Babies and toddlers don't follow a single nightly bedtime the way older children do, because a large share of their sleep still happens in naps. A newborn's sleep is spread in short bouts across the full 24-hour day rather than concentrated overnight, so "bedtime" as a fixed clock time doesn't really apply until several months in. By 4 to 11 months, most infants can support a bedtime around 6:00 to 7:30 PM alongside two or three daytime naps, totaling 12 to 15 hours of sleep across the full day.

By age one to two, toddlers typically consolidate into one nap plus overnight sleep, with a bedtime between 7:00 and 8:30 PM working well for most families. An earlier bedtime in this age range is generally easier for toddlers to settle into than a later one, since overtiredness in young children often makes falling asleep harder, not easier.

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Best Bedtime for Children (3–12 Years)

Children ages 3 to 12 need 9 to 13 hours of sleep depending on their exact age, which typically points to a bedtime between 7:00 and 9:00 PM. Preschoolers on the younger end of this range still often need an afternoon nap, while most children have dropped naps entirely by kindergarten or first grade. As naps disappear, nighttime sleep needs to expand to cover the difference, which is why a consistent, adequately early bedtime becomes more important once daytime sleep opportunities go away.

A common mistake at this age is pushing bedtime later to match a family's evening schedule. Sleep researchers consistently link insufficient sleep in school-age children to worse attention, more behavioral problems, and poorer academic performance the next day — consequences that are easy to misattribute to something else entirely. If bedtime consistently slips later than the ranges in the chart above, consider using the Weekly Sleep Planner to map out a more consistent family schedule.

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Best Bedtime for Teenagers (13–18 Years)

Teenagers need 8 to 10 hours of sleep, but their biology makes early bedtimes genuinely difficult, not just a matter of willpower. During puberty, the body's internal clock shifts later, delaying the release of melatonin — the hormone that signals it's time to sleep. Research tracking adolescents over multiple years confirms that sleep timing and circadian phase both shift measurably later with age across the teen years, and this delay holds up even under tightly controlled laboratory conditions where social factors are removed from the equation.

This creates a direct conflict with early school start times. The American Academy of Pediatrics has stated plainly that early school start times are a key modifiable contributor to insufficient sleep and circadian disruption in middle and high school students, and recommends that schools start no earlier than 8:30 AM to give students a realistic chance at sufficient sleep. Until schedules catch up with the biology, most teens land in a realistic bedtime window of 9:00 to 10:30 PM, even though their bodies may not feel sleepy until closer to 11:00 PM on a fully unstructured schedule.

Practical steps matter more here than at any other age. Dimming lights and stepping away from screens an hour before the target bedtime helps counteract the natural delay in melatonin release. For teens who consistently struggle to fall asleep before midnight regardless of effort, it may be worth reading about how to help a teenager with delayed sleep phase, since a persistent pattern like this can cross into a diagnosable circadian rhythm condition rather than a simple habit problem.

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Best Bedtime for Adults (18–64 Years)

Adults need 7 to 9 hours of sleep, which typically supports a bedtime between 10:00 PM and midnight for a standard early-morning wake-up time. Within this broad adult category, sleep needs stay fairly stable from the mid-20s through the early 60s, though individual chronotype plays a larger role here than at any earlier age — some adults function well on a 9:30 PM to 5:30 AM schedule, while others are genuinely better suited to an 11:30 PM to 7:30 AM pattern.

The single most useful lever for adults isn't finding a universally "correct" bedtime — it's picking a consistent one. Going to bed and waking at wildly different times across the week, even while hitting the total hours, is associated with worse health outcomes than a steady schedule with the same total sleep. If you're unsure whether your current schedule fits your biology, the Chronotype Quiz can help identify whether you're naturally wired earlier or later than the average adult range.

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Best Bedtime for Older Adults (65+)

Older adults need 7 to 8 hours of sleep, and their internal clock typically shifts earlier rather than later, supporting a bedtime around 9:00 to 10:30 PM. This is the opposite pattern from adolescence: instead of a circadian delay, aging is associated with a circadian phase advance, meaning both sleepiness and natural wake time shift to earlier clock hours. Laboratory research comparing circadian responses in older and younger adults found that older participants were significantly phase-advanced in sleep timing compared to younger adults at baseline, confirming this isn't just a behavioral habit but a measurable shift in the underlying biological clock.

Older adults also tend to experience lighter, more fragmented sleep, which can make total time in bed feel less connected to how rested they feel the next day. This doesn't mean older adults need less total sleep than younger adults — the 7 to 8 hour range is still the target — but it does mean sleep quality and consistency deserve more attention than chasing an exact bedtime. For more on this transition, see sleep debt in older adults.

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How to Find Your Personal Best Bedtime

The chart above gives you an age-based starting range, but your exact bedtime should be calculated from your actual required wake-up time. Start by identifying the time you need to be awake — for work, school, or any fixed commitment — and count backward by your age group's recommended sleep duration. For a 30-year-old who needs to wake at 6:30 AM and targets 8 hours of sleep, that points to a bedtime around 10:30 PM.

Add roughly 15 minutes to account for the time it typically takes to fall asleep once you're in bed. From there, the Sleep Cycle Calculator can refine the exact minute further, since waking at the end of a full sleep cycle — rather than in the middle of one — reduces morning grogginess. If mornings are still difficult even after two weeks on a consistent schedule, the Why Am I Tired tool can help rule out other common causes.

A simple three-step method:

1. Pick your fixed wake-up time.
2. Subtract your age group's recommended hours from the chart above.
3. Subtract another 15 minutes for typical time to fall asleep, then hold that bedtime consistently for at least two weeks before adjusting further.

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What Happens When Bedtime Doesn't Match Age-Appropriate Timing

A bedtime that's mismatched to your age-appropriate needs produces different problems depending on which direction it's off. A bedtime that's too late for a given age group directly shortens total sleep time, since most people can't simply sleep in to compensate — school, work, and other commitments fix the wake-up side of the equation. This shortfall compounds over a week; even 30 to 45 minutes of lost sleep nightly adds up to several lost hours by the weekend. Our guide on how to calculate your weekly sleep deficit walks through exactly how this adds up.

A bedtime that's too early relative to someone's natural chronotype creates a different problem: difficulty falling asleep, followed by frustration and, for some people, an association between bed and wakefulness that makes the problem worse over time. This is especially common advice-related failure for teenagers, whose parents may push an adult-appropriate bedtime that conflicts directly with the adolescent circadian delay described earlier.

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Frequently Asked Questions

What is the best bedtime by age?

The best bedtime depends on age-specific sleep duration needs and your wake-up time. As a general guide: infants typically do well with a 6:00–7:30 PM bedtime, school-age children with 7:30–9:00 PM, teenagers with 9:00–10:30 PM, adults with 10:00 PM–midnight, and older adults with 9:00–10:30 PM. These ranges assume a standard early-morning wake time and should be adjusted based on your actual schedule.

What time should a teenager go to bed?

Most teenagers should aim for a bedtime between 9:00 and 10:30 PM to get the recommended 8 to 10 hours of sleep before an early school start time. Puberty naturally delays the release of melatonin, which is why many teens don't feel sleepy until closer to 11:00 PM even on an unstructured schedule. Dimming lights and reducing screen use an hour before bed can help counteract this natural delay.

What time should adults go to bed?

Adults generally do best with a bedtime between 10:00 PM and midnight, which supports the recommended 7 to 9 hours of sleep before a typical early-morning wake-up time. The exact time within that range depends on individual chronotype and required wake-up time. Consistency in bedtime matters as much as the specific hour chosen.

Do older adults need less sleep?

No, older adults need roughly the same or only slightly less sleep than younger adults — about 7 to 8 hours per night, compared to 7 to 9 hours for younger adults. What changes with age is the timing of that sleep, since older adults' internal clocks tend to shift earlier, and sleep often becomes lighter and more fragmented rather than shorter in total duration.

Why do teenagers want to stay up so late?

Teenagers experience a biological shift in their internal clock during puberty that delays the release of melatonin by up to two hours compared to childhood. This means their bodies genuinely don't feel sleepy until later in the evening, even when they need to wake up early for school. Research confirms this shift persists even under controlled conditions that remove social and behavioral influences, indicating it is a real circadian change rather than a preference or lack of discipline.

How much sleep do children need by age?

Sleep needs decrease steadily from infancy through adolescence. Infants need 12 to 15 hours, toddlers 11 to 14 hours, preschoolers 10 to 13 hours, school-age children 9 to 12 hours, and teenagers 8 to 10 hours, all according to American Academy of Sleep Medicine and National Sleep Foundation guidelines. These ranges include daytime naps for children under about age five.

Is it bad to go to bed too early?

Going to bed earlier than your body's natural sleep drive supports can make it harder to fall asleep and, over time, create a frustrating association between bed and wakefulness. This is especially common when an age-inappropriate bedtime is applied, such as an adult-style early bedtime imposed on a teenager whose circadian rhythm runs naturally later. A bedtime that matches your actual sleep pressure and chronotype works better than an artificially early one.

How do I calculate my own best bedtime?

Start with your fixed wake-up time, then subtract your age group's recommended sleep duration from the chart above, then subtract another 15 minutes for the typical time it takes to fall asleep. For example, a 35-year-old adult waking at 6:30 AM who needs 8 hours of sleep would target a bedtime around 10:15 PM. The Bedtime Calculator automates this calculation and can factor in multiple sleep-cycle-aligned options.

Why does my bedtime need to change as I get older?

Bedtime needs to change with age because both total sleep requirements and the internal circadian clock shift across a lifetime. Sleep duration needs decrease steadily from infancy through adulthood, while the clock itself delays during adolescence and then advances again in older adulthood. A bedtime that worked well for you at 20 may no longer fit your biology at 45 or 70, even if your schedule hasn't changed.

What if my ideal bedtime doesn't match my work or school schedule?

When a fixed wake-up time conflicts with your age-appropriate or personal chronotype-based bedtime, the most reliable fix is adjusting the bedtime side as close to the ideal range as possible rather than accepting chronic sleep loss. For teenagers in particular, this is a documented public health issue tied to early school start times rather than a fixable personal habit. Where the mismatch can't be resolved through schedule changes, prioritizing sleep consistency and minimizing pre-bed stimulation becomes especially important.

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The Bottom Line

The best bedtime isn't a single number — it's a moving target set by your age, your required wake-up time, and your personal chronotype. What counts as a healthy bedtime for a ten-year-old would leave a teenager sleep-deprived, and what works for a 30-year-old often needs to shift earlier by retirement age.

To put this into practice:

1. Find your age group in the chart above and note the recommended sleep duration range.
2. Subtract that range from your actual required wake-up time to get a starting bedtime.
3. Add 15 minutes to account for typical time to fall asleep.
4. Hold that bedtime consistently for at least two weeks before adjusting further, since your body needs time to adapt to a new schedule.
5. Use the Bedtime Calculator to generate a precise, personalized bedtime rather than relying on the chart's midpoint alone.

Age-appropriate timing isn't a minor detail — it's the foundation every other sleep habit builds on. Get the range right first, then fine-tune from there.

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Tools Referenced in This Article

• Bedtime Calculator — Calculates a personalized bedtime from your wake-up time and age
• Sleep Cycle Calculator — Refines bedtime and wake time to align with complete sleep cycles
• Chronotype Quiz — Identifies whether your body runs naturally earlier or later than average
• Weekly Sleep Planner — Maps a consistent bedtime schedule across a full week
• Why Am I Tired — Screens for common causes of persistent daytime fatigue

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Related Reading

• How to Help a Teenager With Delayed Sleep Phase — Health — What to do when a teen's bedtime consistently runs past 11 PM
• Sleep Debt in Older Adults — Health — How sleep timing and quality shift after 65
• How to Calculate Your Weekly Sleep Deficit — Optimization — How small nightly bedtime shortfalls add up over a week
• How to Reset Your Circadian Rhythm in 3 Days — Optimization — A practical plan for shifting your bedtime to a new target
• What Time to Wake Up Based on Bedtime — Optimization — The reverse calculation, for planning from bedtime forward

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References

1. Hirshkowitz M, Whiton K, Albert SM, et al. National Sleep Foundation's sleep time duration recommendations: methodology and results summary. Sleep Health. 2015;1(1):40–43. https://www.sleephealthjournal.org/article/S2352-7218(15)00015-7/fulltext
2. Paruthi S, et al. Consensus Statement of the American Academy of Sleep Medicine on the Recommended Amount of Sleep for Healthy Children: Methodology and Discussion. Journal of Clinical Sleep Medicine. 2016. doi:10.5664/jcsm.6288. https://jcsm.aasm.org/doi/10.5664/jcsm.6288
3. Watson NF, Badr MS, Belenky G, et al. Recommended Amount of Sleep for a Healthy Adult: A Joint Consensus Statement of the American Academy of Sleep Medicine and Sleep Research Society. Journal of Clinical Sleep Medicine. 2015;11(6):591–592. doi:10.5664/jcsm.4758. https://jcsm.aasm.org/doi/10.5664/jcsm.4758
4. American Academy of Sleep Medicine. Sleep FAQs: Recommended sleep amounts by age. Sleep Education. https://sleepeducation.org/sleep-faqs/
5. Adolescent Sleep Working Group, American Academy of Pediatrics. School Start Times for Adolescents. Pediatrics. 2014;134(3):642–649. https://publications.aap.org/pediatrics/article/134/3/642/74175/School-Start-Times-for-Adolescents
6. Adolescent Changes in the Homeostatic and Circadian Regulation of Sleep. PMC. https://pmc.ncbi.nlm.nih.gov/articles/PMC2820578/
7. A Longitudinal Assessment of Sleep Timing, Circadian Phase, and Phase Angle of Entrainment across Human Adolescence. PMC. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4224451/
8. Circadian phase response curves to light in older and young women and men. PMC. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1988787/
9. Delayed Sleep Phase Syndrome. Cleveland Clinic. https://my.clevelandclinic.org/health/diseases/14295-delayed-sleep-phase-syndrome-dsps
10. Division of Sleep Medicine, Harvard Medical School. Changes in Sleep with Age. Healthy Sleep. https://healthysleep.med.harvard.edu/healthy/science/variations/changes-in-sleep-with-age

Note on source dates: References 1, 2, 3, and 5 (2014–2016) remain the current, unrevised professional consensus guidelines on age-based sleep duration and school scheduling, and continue to be cited as the operative standard by the AASM, NSF, and AAP respectively. No newer consensus statement has superseded these recommendations.

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Disclaimer: This article is for educational and informational purposes only and does not constitute medical advice. Individual sleep needs vary. If a child, teenager, or adult in your care experiences persistent difficulty falling asleep, staying asleep, or waking refreshed despite an age-appropriate schedule, consult a licensed healthcare provider or board-certified sleep medicine specialist.