CBT-I: the first-line treatment for chronic insomnia

Cognitive behavioral therapy for insomnia, usually abbreviated as CBT-I, is the treatment that international and Dutch guidelines designate as the first-line option for long-term insomnia. Not a sleeping pill, not a supplement, and not "trying harder to sleep," but a structured, short-term therapy that tackles the habits and thoughts that keep insomnia going. This article explains what CBT-I is, what it consists of, how strong the evidence is, and how to access it in the Netherlands.

What is CBT-I?

CBT-I is a form of cognitive behavioral therapy specifically aimed at insomnia. The premise is that insomnia often starts with a trigger (stress, an illness, a difficult period), but is then maintained by what you do and think around sleep: staying in bed longer, napping during the day, watching the clock anxiously, and worrying more and more about the consequences of not sleeping. CBT-I breaks that vicious cycle.

A full course of CBT-I usually consists of roughly four to eight sessions or weeks and combines several components. It is precisely that combination — multicomponent CBT-I — that receives the strongest recommendation in the guidelines ^[2][3].

The components of CBT-I

CBT-I is not a single tip, but a package of proven techniques used together:

• Stimulus control. Re-linking the bed to sleep instead of to lying awake and worrying: only go to bed when you are sleepy, use the bed only for sleep (and sex), and get out of bed if you do not fall asleep within about fifteen minutes.
• Sleep restriction. Temporarily limiting time in bed to roughly the time you actually sleep, so that sleep "consolidates" and you fall asleep faster and more deeply. After that, time in bed is gradually expanded again. This is one of the most powerful components, but it can cause more sleepiness at first.
• Relaxation. Techniques such as breathing and muscle relaxation to reduce the physical and mental tension that blocks falling asleep.
• Cognitive restructuring. Adjusting unhelpful and exaggerated thoughts about sleep ("if I don't sleep now, tomorrow will be a complete disaster") that fuel the tension and thereby the insomnia.
• Psychoeducation and sleep hygiene. Explaining how sleep works (sleep pressure, body clock) and practical advice about caffeine, alcohol, light, and a regular routine — as a supporting framework, not as the treatment itself.

Why CBT-I and not straight to a sleeping pill?

Sleep medication (such as benzodiazepines and z-drugs) works in the short term, but has significant drawbacks: the effect fades with prolonged use, tolerance and dependence can develop, and stopping often causes rebound insomnia — the insomnia temporarily returns more severely. That is why the NHG Standard, the AASM, and the European guideline advise using sleep medication only short-term or in exceptional cases, and place CBT-I as the first-line option ^[1][2][4].

CBT-I addresses the maintaining factors rather than temporarily dampening the symptom. That explains why the effect persists after treatment is finished — an important difference from medication.

Does it really work? The evidence

The evidence for CBT-I is strong and consistent. Multiple independent meta-analyses of randomized studies show that CBT-I measurably improves sleep: people fall asleep faster, spend less time awake at night, and are more satisfied with their sleep, with moderate to large effects that also hold up after treatment ends ^[6][5]. The systematic review with GRADE assessment behind the AASM guideline reaches the same conclusion and forms the basis for the strong recommendation of multicomponent CBT-I ^[3].

How long does it take and how durable is the effect?

A typical course of CBT-I runs over roughly four to eight sessions or weeks. Many people notice improvement within a few weeks, partly because sleep restriction quickly consolidates sleep. Unlike sleep medication, the effect of CBT-I is durable: because you learn new habits and more realistic thoughts about sleep, the improvement usually persists in the months after treatment ^[6][5].

Digital CBT-I: does an online course work too?

Not everyone has easy access to a therapist, and there is good news about that. A 2025 meta-analysis of fully automated, digital CBT-I (online programs without guidance) shows that this form also reduces insomnia ^[7]. A therapist-guided CBT-I is on average somewhat more effective, but digital CBT-I substantially lowers the threshold and makes the treatment widely accessible — a valuable alternative when a waiting list or the cost of face-to-face therapy stands in the way.

CBT-I in the Netherlands: the route via your GP

In the Netherlands the route usually starts with your GP. The NHG Standard on Sleep Problems (2024) advises GPs to focus on education and behavioral treatment for persistent sleep complaints (the building blocks of CBT-I) and to be cautious with sleep medication ^[1]. Depending on your situation, the GP or practice nurse (POH-GGZ) can support you, refer you to a psychologist, or point you to a (reimbursed) online CBT-I program. Ask about it directly: CBT-I is still far from being the automatic first step everywhere, even though the guidelines point to it.

CBT-I is therefore not a vague self-help story, but a concrete, well-founded treatment that is recommended by the most important guidelines. It takes some effort and the first weeks can be tough, but it delivers a lasting improvement — without the drawbacks of long-term medication use.