What Time Should I Go to Bed?

Quick answer: There is no universal bedtime. If you normally sleep well, pick a wake time you keep every day, count back 7 to 9 hours, and get into bed inside that range once you feel sleepy. If you have insomnia and spend long stretches awake in bed, the bedtime that works is often later than that math suggests, and it should come from your own sleep diary inside a structured program rather than from a shortened window you build yourself.

Six o'clock alarm, eight hours of sleep, so bed at ten. You did the subtraction, got in on time, and lay there. The next night you moved it to 9:30 to make up the difference, and lay there longer. Somewhere in that math the bedtime stopped being a plan and became the part of the day you dread.

What time should you go to bed? There is no universal hour, and the two calculators the internet offers both skip the same step. The National Sleep Foundation's guidelines put the recommended sleep duration for healthy adults aged 18 to 64 at 7 to 9 hours, and 7 to 8 hours from 65 on [1].

The other calculator counts back from your alarm in 90-minute sleep cycles. In the standard account of normal sleep physiology, real cycles run about 70 to 100 minutes early in the night and 90 to 120 minutes later on, so a calculator that assumes 90 is guessing [2]. Neither number tells you when your body will be ready.

What Time Should I Go to Bed Based on My Wake-Up Time?

If you generally sleep well, start from the time you need to be up, count back 7 to 9 hours, and treat that as the range your bedtime should fall in [1]. A 6am alarm puts it between 9pm and 11pm; a 7am alarm, between 10pm and midnight. Where you land inside it depends on when you actually get sleepy, not on the middle of the range. The calculator below does the subtraction for you.

That range is for healthy adults aged 18 to 64. From 65 on, the recommended amount is 7 to 8 hours, so the earliest bedtime moves about an hour later [1].

Two rules make the range work. Keep the wake time steady all week, because sleep pressure and your body clock both settle around a consistent morning. And get into bed at the point in the range when you feel sleepy, not at the earliest time you could. If you are in bed and awake most nights, or the range keeps failing you, the next section is for you.

What Time Should I Go to Bed If I Have Insomnia?

Later than the eight-hour math says, and only once you are sleepy.

The early bedtime backfires because time in bed your body cannot fill with sleep does not stay neutral. You get in at ten to catch up, lie awake until midnight, and over enough nights your brain learns that the bed is where you lie awake. That learning is the reason the stimulus control rule in CBT-I (Cognitive Behavioral Therapy for Insomnia) says to get into bed only when sleepy [3], and it is why lying awake in bed feels worse the longer you do it.

Rest's program builds the bedtime from your sleep rather than from your alarm. Your first five sleep logs set an ideal wake time. From there you get a sleep window: your average nightly sleep plus 30 minutes, the extra half hour being room to fall asleep. If you average 5.5 hours a night, the window is 6 hours, and with a 6am wake time the earliest bedtime is midnight. Those figures are Rest's program numbers. Sleep restriction has been run with different starting formulas, different minimum windows, and different adjustment rules across trials, and a 2015 review of 88 CBT-I trials found no single standard implementation [4].

Do not build a shortened sleep window on your own. Spending fewer hours in bed has a real cost in the first weeks: when 16 people with insomnia went through sleep restriction, their measured sleep fell by 91 minutes on the first night, and daytime sleepiness and lapses on a reaction-time test rose through the first three weeks before settling back [5]. Do not drive or do safety-critical work while you are that sleepy. And if you have bipolar disorder, a seizure disorder, untreated sleep apnea, are pregnant or recently postpartum, are at risk of falls at night, or are in an acute mental-health episode, the 2025 VA/DoD insomnia guideline lists these as reasons to adapt or delay this kind of treatment, and it should run with a clinician [6]. Sleep restriction therapy is the clinical version of the same idea, and it runs with a plan for a reason.

Inside the program, the earliest bedtime means do not get in bed before that time. It does not mean get in at that exact time. If midnight arrives and you are wide awake, stay up a little longer with the lights low and wait for the heaviness to come.

Rest reviews the window every morning from your log and moves the earliest bedtime 15 minutes earlier once two targets are met: sleep efficiency (time asleep divided by time in bed) holding above 85%, and falling asleep quickly. The night lengthens after it becomes solid, not before.

Picking a bedtime and following the usual sleep-hygiene advice are not, on their own, a treatment for insomnia that has gone on for months. Sleep hygiene alone is a weak treatment for a clinical sleep disorder [7], and the American Academy of Sleep Medicine (AASM) advises clinicians not to use it as a stand-alone therapy [8].

Does Wake Time Matter More Than Bedtime?

In CBT-I, wake time is the more useful anchor, because it is the only end of the night you control. Two systems decide when sleep comes. Pressure to sleep builds the whole time you are awake and drains while you sleep. Your body clock decides when that pressure is allowed to win [9]. An alarm sets the wake time directly. Bedtime has to wait for the sleepy signal, and that signal does not take instructions.

Held every day, weekends included, one wake time does two jobs. It caps how much sleep you can take, so pressure builds instead of spreading across a long morning in bed. And it makes your morning light regular, which is what your body clock actually reads: the clock's master timer sits in the brain and takes its daily reset from brightness detectors in the retina [2]. How to hold the wake time, what to do with the morning light, and what to do if your schedule has drifted late are in How to Reset Your Sleep Schedule.

CBT-I is the first-line treatment for chronic insomnia in adults, and the 2021 AASM guideline strongly recommends it [8]. A fixed wake time and a bed you only get into when sleepy are both part of it. Rest is a program built on the behavioral principles of CBT-I, plus circadian biology and neuroscience, together with world-class sleep experts from institutions like UCSF and Stanford. The coach is there by text or by voice at any hour, and every morning it reads last night's log and tells you whether your earliest bedtime holds or moves.

If your nights have been off for months, stop doing the subtraction. See how Rest can help »

Frequently Asked Questions

What time should I go to bed if I wake up at 6am? If you sleep well, between 9pm and 11pm, getting in at the point when you feel sleepy. If you have insomnia and average well under seven hours, the bedtime that works is later, built from how long you actually sleep, and it should be set inside a structured program rather than on your own.

Should I go to bed if I am tired but not sleepy? No. Tired is low energy; sleepy is eyelids closing and losing the thread of what you are doing. Getting into bed tired but not sleepy usually means lying awake, which teaches the brain that the bed is a place for being awake. Stay up with the lights low until the sleepiness arrives.

Do 90-minute sleep cycle calculators work? Not reliably. The 90-minute figure is an average. The first cycle of the night runs about 70 to 100 minutes and later cycles about 90 to 120, so counting back in fixed blocks lands on an arbitrary time. A consistent wake time and getting into bed when sleepy do more than cycle math.

Is wake time more important than bedtime for insomnia? For insomnia, yes, as a practical matter. You can set a wake time with an alarm and keep it every day, which builds sleep pressure and keeps morning light regular. You cannot force the moment you fall asleep, so bedtime follows the sleepy signal rather than the clock.

Disclaimer. This article is published for general information only. It is not medical advice or a diagnosis, and nothing here is a recommendation to take, avoid, or change any supplement or medication. Rest is not a substitute for professional medical care. Do not start, stop, or adjust a treatment, including a prescribed sleep medication, without talking to your clinician.

Citations

1. Hirshkowitz, M., Whiton, K., Albert, S. M., et al. (2015). National Sleep Foundation's sleep time duration recommendations: methodology and results summary. Sleep Health, 1(1), 40–43. https://doi.org/10.1016/j.sleh.2014.12.010 — 18-member expert panel; 7 to 9 hours recommended for adults aged 18 to 64, 7 to 8 for adults 65 and older. Written for healthy people with normal sleep; the panel explicitly excludes people with a sleep disorder.

2. Institute of Medicine (US) Committee on Sleep Medicine and Research. (2006). Sleep physiology. In H. R. Colten & B. M. Altevogt (Eds.), Sleep Disorders and Sleep Deprivation: An Unmet Public Health Problem. Washington, DC: National Academies Press. https://www.ncbi.nlm.nih.gov/books/NBK19956/ — the first NREM-REM cycle averages 70 to 100 minutes and later cycles 90 to 120 (citing Carskadon & Dement); the suprachiasmatic nucleus regulates circadian rhythms and is reset daily by brightness-detecting cells in the retina.

3. Perlis, M. L., Smith, M. T., Benson-Jungquist, C., & Posner, D. A. (2005). Cognitive Behavioral Treatment of Insomnia: A Session-by-Session Guide. New York: Springer. https://doi.org/10.1007/0-387-29180-6 — stimulus control: go to bed only when sleepy, so the bed stays tied to sleep rather than to lying awake.

4. Kyle, S. D., Aquino, M. R. J., Miller, C. B., Henry, A. L., Crawford, M. R., Espie, C. A., & Spielman, A. J. (2015). Towards standardisation and improved understanding of sleep restriction therapy for insomnia disorder: A systematic examination of CBT-I trial content. Sleep Medicine Reviews, 23, 83–88. https://doi.org/10.1016/j.smrv.2015.02.003 — 88 trials; 39% reported no sleep-restriction parameters at all, and among those that did, implementation varied in how the window was generated, the minimum time in bed, and the efficiency criteria used to adjust it. Only 7% reported every parameter.

5. Kyle, S. D., Miller, C. B., Rogers, Z., Siriwardena, A. N., Macmahon, K. M., & Espie, C. A. (2014). Sleep restriction therapy for insomnia is associated with reduced objective total sleep time, increased daytime somnolence, and objectively impaired vigilance: Implications for the clinical management of insomnia disorder. Sleep, 37(2), 229–237. https://doi.org/10.5665/sleep.3386 — 16 patients with insomnia through a 4-week sleep restriction protocol. Objective sleep time fell by 91 minutes on the first night; reaction-time lapses and Epworth sleepiness scores rose during the first three weeks and returned to baseline by three months. Small and uncontrolled, but the clearest measurement of the early cost of a restricted window.

6. U.S. Department of Veterans Affairs & U.S. Department of Defense. (2025). VA/DoD Clinical Practice Guideline for the Management of Chronic Insomnia Disorder and Obstructive Sleep Apnea (Version 3). https://www.healthquality.va.gov/guidelines/CD/insomnia/ — lists conditions requiring adaptation or delay of CBT-I and brief behavioral therapy for insomnia: medically unstable, active alcohol or drug use disorder, excessive daytime sleepiness, nighttime fall risk, exposure-based PTSD treatment, uncontrolled seizure disorder, bipolar disorder, acute mental-health symptoms, and pregnancy or postpartum insomnia.

7. Irish, L. A., Kline, C. E., Gunn, H. E., Buysse, D. J., & Hall, M. H. (2015). The role of sleep hygiene in promoting public health: A review of empirical evidence. Sleep Medicine Reviews, 22, 23–36. https://doi.org/10.1016/j.smrv.2014.10.001 — sleep-hygiene advice alone is a weak treatment for a clinical sleep disorder.

8. Edinger, J. D., Arnedt, J. T., Bertisch, S. M., et al. (2021). Behavioral and psychological treatments for chronic insomnia disorder in adults: an American Academy of Sleep Medicine clinical practice guideline. Journal of Clinical Sleep Medicine, 17(2), 255–262. https://doi.org/10.5664/jcsm.8986 — strong recommendation for multicomponent CBT-I in adults with chronic insomnia; suggests clinicians not use sleep hygiene as a single-component therapy.

9. Borbély, A. A., Daan, S., Wirz-Justice, A., & Deboer, T. (2016). The two-process model of sleep regulation: A reappraisal. Journal of Sleep Research, 25(2), 131–143. https://doi.org/10.1111/jsr.12371 — sleep drive (Process S) builds during wake and is discharged during sleep; the circadian clock (Process C) times when that pressure can win.