"If you can't sleep, get up": the 1972 rule behind modern sleep programmes — and what is left of it

In 1972 the American psychologist Richard Bootzin suggested something that sounds almost rude to a tired person: if you cannot sleep, get out of bed. His idea was that a bed where you lie awake, worry and scroll slowly turns into a cue for being awake — and that a few plain rules could re-teach it. Half a century later the rule is still at the centre of most structured sleep programmes, including ours. The explanation behind it, though, has not aged as well as the rule itself.

The original study

Bootzin's report was a two-page paper in the proceedings of the American Psychological Association's annual convention. It is not indexed in the usual research databases, and we could not read the original; what follows is based on a 2025 review that quotes it.

The reasoning came from learning theory. For a good sleeper, the bed and bedroom are reliably paired with falling asleep. For someone with insomnia, the same place gets paired with reading, television, planning tomorrow — and above all with lying awake, frustrated. The bed becomes a signal for wakefulness. The goal was to break that link by limiting time spent awake in bed.

The original version had just four instructions:

1. Lie down intending to sleep only when you are sleepy.
2. Do not read or watch television in the bedroom.
3. If you cannot sleep, get up and go to another room; stay up as long as you wish, then return to sleep.
4. If you still cannot fall asleep, repeat step 3 — as often as necessary through the night.

Two details are worth noticing. First, Bootzin deliberately left step 3 vague — no fixed number of minutes — to avoid clock-watching. The "15-minute rule" came later, as people retold it. Second, two of today's best-known rules were not in the 1972 list: a fixed alarm time every morning and no daytime naps were added by Bootzin and a colleague several years later (1978).

What happened next

The 1970s–1990s: lots of small trials. Stimulus control was tested many times, usually in small groups and often against other behavioural methods. By 2006 a task force of the American Academy of Sleep Medicine listed it among five psychological and behavioural approaches to insomnia that met their criteria for empirical support (Morin et al., 2006).

2021: a guideline, with a qualifier. The Academy's current guideline gives a strong recommendation to the multicomponent programme (CBT-I — the cognitive-behavioural approach to insomnia) and a conditional recommendation to stimulus control on its own. It also advises clinicians against using sleep-hygiene advice as a stand-alone approach (Edinger et al., 2021). In other words: the rule is useful, but it works best as part of a package.

2024: the first modern meta-analysis. A Swedish team pooled 11 trials — most published between 1978 and 1998 (Jansson-Fröjmark et al., 2024). Compared with doing nothing or waiting, stimulus control led to small-to-large improvements in how long it took to fall asleep and in total sleep time (effect sizes 0.38 to 0.85). Compared with other active methods, the differences were negligible (0.06 to 0.30). The authors noted methodological uncertainties and called for more robust studies.

2024: does the explanation hold? A Canadian network meta-analysis of 23 studies (Verreault et al., 2024) agreed that stimulus control improves insomnia compared with control conditions, but rated study quality as generally poor. Its most interesting finding: not all stimulus-control instructions seemed essential, particularly the ones meant to "re-condition" the bedroom. The authors wrote that the review challenges the classical-conditioning explanation. The rule seems to work, but why it works is still an open question.

2024: taking CBT-I apart. A very large analysis looked at 241 trials with 31,452 participants and tried to estimate what each ingredient of CBT-I adds (Furukawa et al., 2024). Stimulus control came out as one of the helpful ingredients (incremental odds ratio for remission 1.43, with a 95 % confidence interval of 1.00 to 2.05 — just at the edge of certainty), alongside sleep restriction (1.49) and working with thoughts about sleep (1.68). Sleep-hygiene education added nothing (1.01), and relaxation procedures were possibly counterproductive (0.81). Stimulus control was linked mainly to better self-rated sleep quality, sleep efficiency and faster sleep onset.

2026: the quarter-of-an-hour rule on its own. A small Oxford trial tested just one instruction derived from stimulus control — the "quarter-of-an-hour rule" — in 44 adults with long-standing insomnia recruited in primary care (Espie et al., 2026). One group got up after about a quarter of an hour awake; another stayed in bed but followed an in-bed version; a third only kept a sleep diary. Both rule groups reported falling asleep faster, less time awake at night and better sleep efficiency (about 14 % overall), but sleep measured objectively with home polysomnography did not improve. This is early evidence, but it suggests even a single, well-explained instruction can help — and that an in-bed version may suit people who cannot easily get up at night.

Where it stands today

Evidence: Moderate evidence. Stimulus control is a well-established ingredient of structured sleep programmes and has some support as a stand-alone method. Its effect on its own is modest compared with other active methods, many of the original trials are old and small, and the classical-conditioning story that inspired it is now contested. What has held up best is the practical core: go to bed when sleepy, do not stay in bed struggling for long, keep a steady wake-up time.

What this means for you

If your bed has become a place for lying awake, the most useful step is behavioural, not a better pillow or a stricter "hygiene" list.

• Learn the full modern set of rules and why each is there: The six rules that re-teach the bed and Your bed has learned the wrong lesson.
• Rehearse getting up before the night, so it is a plan rather than a 3 a.m. debate — and judge "about a quarter of an hour" by feel, not by the clock, as Bootzin intended: Rehearse getting up in the night.
• Anchor the morning: one wake-up time, every day. Choose your anchor.
• Expect the first nights to feel harder and to be sleepier during the day. If you drive or do safety-critical work, read Sleepy versus tired first.

If insomnia has lasted for months and affects your days, or comes with loud snoring and breathing pauses, talk to a doctor or a sleep specialist.

What this does NOT mean

• It does not mean the bed must never be used for anything else: the evidence for the strict "re-conditioning" rules is the weakest part.
• It does not mean you should watch the clock and leap up at exactly 15 minutes — the original rule was vague on purpose.
• It does not mean stimulus control alone is enough for everyone: guidelines favour the full multicomponent programme.
• It does not mean sleep-hygiene tips are useless for well-being — only that on their own they rarely shift long-standing insomnia.

Sources

• Bootzin RR. Stimulus control treatment for insomnia. Proceedings of the American Psychological Association, 1972;7:395–396 (no DOI; cited from the reference lists of the reviews below).
• Cuddihy LJ, Grandner MA, Nowakowski S. Implementation of stimulus control and sleep restriction therapy for insomnia: standard definitions and best practices. J Behav Cogn Ther, 2026;36(2):100542 (online 2025). DOI: 10.1016/j.jbct.2025.100542
• Morin CM, Bootzin RR, Buysse DJ, et al. Psychological and behavioral treatment of insomnia: update of the recent evidence (1998–2004). Sleep, 2006. DOI: 10.1093/sleep/29.11.1398
• Edinger JD, Arnedt JT, Bertisch SM, et al. Behavioral and psychological treatments for chronic insomnia disorder in adults: an AASM clinical practice guideline. J Clin Sleep Med, 2021. DOI: 10.5664/jcsm.8986
• Jansson-Fröjmark M, Nordenstam L, Alfonsson S, et al. Stimulus control for insomnia: a systematic review and meta-analysis. J Sleep Res, 2024. DOI: 10.1111/jsr.14002
• Verreault MD, Granger É, Neveu X, et al. The effectiveness of stimulus control in cognitive behavioural therapy for insomnia in adults: a systematic review and network meta-analysis. J Sleep Res, 2024. DOI: 10.1111/jsr.14008
• Furukawa Y, Sakata M, Yamamoto R, et al. Components and delivery formats of cognitive behavioral therapy for chronic insomnia in adults: a systematic review and component network meta-analysis. JAMA Psychiatry, 2024. DOI: 10.1001/jamapsychiatry.2023.5060
• Espie CA, Tse KYK, Malaffo M. Efficacy of the "quarter-of-an-hour-rule" single instruction derived from stimulus control therapy for insomnia: a pragmatic open-label randomized controlled trial. Behav Sleep Med, 2026. DOI: 10.1080/15402002.2026.2724278