CBT-I works. Almost nobody gets it. Here's the math.

CBT-I is the most evidence-backed treatment for chronic insomnia, but fewer than 1% of people who need it can access a trained provider. The access gap is the biggest problem in sleep medicine, and it is not getting smaller.

The first-line treatment almost nobody sees

Every major guideline on chronic insomnia says the same thing. CBT-I (cognitive behavioral therapy for insomnia) is the first-line treatment. Better than sleeping pills. Better than sleep hygiene advice alone. The American College of Physicians 2016 guideline is explicit: CBT-I before pharmacotherapy, always. The European Sleep Research Society says the same thing. This has been the recommendation for over a decade.

And only a small fraction of people with chronic insomnia ever receive it. Koffel, Bramoweth and Ulmer published a 2018 review of CBT-I access and utilization in the Journal of Clinical Sleep Medicine. The finding: the treatment works, the guidelines endorse it, and the supply of trained providers is nowhere near the demand. Most patients with insomnia are prescribed medication instead, because a prescription takes five minutes and a CBT-I referral leads to a months-long waitlist.

The numbers do not work

The American Board of Sleep Medicine lists the pool of board-certified behavioral sleep medicine (BSM) specialists in the US in the low hundreds. The CDC estimates that roughly 30 million American adults have chronic insomnia. Even if every BSM specialist worked 60 hours a week seeing only insomnia patients, the math does not work. There are not enough providers by orders of magnitude.

This is not unique to the US. Espie and colleagues published a 2012 study in Sleep evaluating a digital CBT-I intervention (Sleepio) and found significant improvements in sleep efficiency. Digital programs improve access, but they introduce a different problem: completion rates. The standard CBT-I protocol is six to eight weeks of homework, sleep diaries, stimulus control, and sleep restriction. Sleep restriction is the part where you deliberately limit your time in bed to rebuild sleep pressure. Most people quit before it starts working.

Morin, Vallières, Guay, Ivers, Savard, Mérette, Bastien and Baillargeon's 2009 study in JAMA compared CBT-I alone, medication alone, and the combination. CBT-I produced the most durable results at long-term follow-up. But "durable results" requires completing the protocol, and real-world adherence to a six-week behavioral program is substantially lower than in a clinical trial where participants are motivated and supported.

What CBT-I actually involves

Understanding why completion rates are low requires understanding what the protocol asks of you.

• Sleep restriction: you calculate your actual sleep time (say, six hours) and limit your time in bed to that amount. If you currently go to bed at 10 PM and get up at 7 AM, you might be told to go to bed at midnight and get up at 6 AM. You will be more tired for the first one to two weeks. This is deliberate. It rebuilds sleep pressure.
• Stimulus control: bed is only for sleep and sex. No reading, no phone, no TV. If you are not asleep in 20 minutes, get out of bed and do something boring until you feel sleepy.
• Cognitive restructuring: identifying and challenging unhelpful beliefs about sleep. "If I do not get eight hours I cannot function" becomes "I have functioned on six hours many times."
• Sleep hygiene: the standard advice (cool room, no caffeine, consistent wake time) that most people already know but do not follow consistently.

The sleep restriction component is the most effective and the most aversive. Being deliberately sleep-deprived for two weeks while working a full-time job and raising kids is hard. Most people who quit CBT-I quit during this phase.

Where hypnotherapy fits

Hypnotherapy is not a replacement for CBT-I. They work through different mechanisms. CBT-I restructures the behavioral and cognitive patterns that maintain chronic insomnia. Hypnotherapy reduces physiological arousal at bedtime and shortens the time it takes to fall asleep.

Cordi, Schlarb and Rasch's 2014 study in Sleep found that a hypnotic suggestion played before a nap increased slow-wave sleep by 81% in medium-to-high suggestible participants. This addresses a different piece of the insomnia puzzle than CBT-I does. CBT-I fixes the behavioral cycle. Hypnotherapy helps you actually fall asleep on any given night.

The practical advantages of hypnotherapy for the people who cannot access CBT-I:

• No multi-week protocol. A session works from night one. The effects deepen with repeated use, but there is no two-week period where things get worse before they get better.
• No provider required. Self-guided sessions are available in an app. No waitlist, no referral, no insurance negotiation.
• Complements CBT-I. If you are doing CBT-I and struggling with the sleep restriction phase, a hypnosis session at your new bedtime can help you fall asleep within the restricted window.

For more on how hypnosis helps with sleep specifically, read our hypnosis for sleep guide. To understand why falling asleep fast matters more than total hours, see the sleep metric that matters more than total hours.

Frequently asked questions