Every claim on this site has a citation.

Behavioral and psychological treatments for chronic insomnia disorder in adults: an American Academy of Sleep Medicine clinical practice guideline.

Edinger, J. D., Arnedt, J. T., Bertisch, S. M., et al. · Journal of Clinical Sleep Medicine, 17(2), 255–262.

CBT-I receives a strong recommendation (Grade-A evidence) as first-line therapy for chronic insomnia disorder. Sleep restriction and stimulus control are core, evidence-supported components.

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Cognitive behavioral therapy, singly and combined with medication, for persistent insomnia: a randomized controlled trial.

Morin, C. M., Vallières, A., Guay, B., et al. · JAMA, 301(19), 2005–2015.

At 12-month follow-up, CBT-I alone outperformed both medication alone and CBT-I + medication. The behavioral skills generalize; the drug effect does not.

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Cognitive behavioral therapy for chronic insomnia: a systematic review and meta-analysis.

Trauer, J. M., Qian, M. Y., Doyle, J. S., et al. · Annals of Internal Medicine, 163(3), 191–204.

Across 20 trials and 1,162 participants, CBT-I produced clinically meaningful improvements in sleep-onset latency, wake-after-sleep-onset, and sleep efficiency — durable at follow-up.

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Treatment of chronic insomnia by restriction of time in bed.

Spielman, A. J., Saskin, P., & Thorpy, M. J. · Sleep, 10(1), 45–56.

The original sleep restriction therapy paper. Counterintuitive at first — less time in bed, deeper sleep — but the durable mechanism is clear: rebuilding sleep efficiency before adding time back.

Stimulus control treatment for insomnia.

Bootzin, R. R. · Proceedings of the American Psychological Association.

The bed-equals-sleep retraining protocol. If awake more than 20 minutes in bed, leave the bed; return only when sleepy. Still core to CBT-I 50 years later.

Why sleep matters — the economic costs of insufficient sleep.

Hafner, M., Stepanek, M., Taylor, J., Troxel, W. M., & van Stolk, C. · RAND Corporation, RR-1791-VH.

Insufficient sleep costs the US economy up to $411 billion per year — roughly $2,280 per US worker. The cost-of-doing-nothing case for employers.

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Light, melatonin, and the chronobiology of human reproduction.

Wiley, A. S., & Formby, B. · Lights Out: Sleep, Sugar, and Survival. Pocket Books.

Foundational popular treatment of circadian anchoring — bright morning light, evening dimming, room temperature near 65–68°F. The infrastructure layer CBT-I sits on top of.

Efficacy of binaural auditory beats in cognition, anxiety, and pain perception: a meta-analysis.

Garcia-Argibay, M., García-Navarro, J., et al. · Psychological Research, 83(2), 357–372.

Binaural beats produce modest effects on relaxation and pre-sleep anxiety, stronger when paired with behavioral practice than as a standalone. Why we treat audio as a bridge into the CBT-I work, not a replacement.

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