When CBT-I Doesn't Work: What to Reassess Before Giving Up on Sleep Treatment
Last reviewed: 10/10/2026
Reviewed by: Dr. Kiesa Kelly
You did the thing everyone recommends. You found cognitive behavioral therapy for insomnia, kept the sleep diary, got up at the same time every morning, and sat through the exhausting weeks of a shortened sleep window. Some nights got better. But months later you are still lying awake more than you would like, or the old pattern crept back after a stressful stretch, and you are wondering whether CBT-I is not working for you, or whether you are the problem.
Neither is the most likely answer. CBT-I is the recommended first-line treatment for chronic insomnia [1][2][3], and in one well-known trial, 60 percent of people who received it responded [4]. But "helps" is not the same as "fixes," and a course can fall short for reasons that have nothing to do with effort. Before you give up on sleep treatment, it is worth working out what "didn't work" actually means for you, whether you got the full treatment, and whether something else is keeping your sleep stuck. Our insomnia treatment page describes how we approach this; this article walks through the reassessment itself.
In this article, you'll learn:
What researchers mean when they say CBT-I "worked," and why partial improvement is common
Three misconceptions that make people give up too early
How to check whether the CBT-I you had was complete
When another sleep disorder or a co-occurring condition deserves a look
What the evidence says about insomnia coming back, and what the options are next
The short answer: non-response to CBT-I is a signal to reassess, not a dead end
Researchers measure CBT-I outcomes with tools like the Insomnia Severity Index, a short questionnaire scored from 0 to 28. Scores from 0 to 7 fall in the range its developers label as absence of insomnia [5]. In the trial described below, and in many other treatment studies, a response meant the score dropped by more than 7 points, and remission meant the score fell below 8 [5][4]. These are research conventions, not hard rules. The gap between those two words matters. You can improve a great deal and still not be in remission.
That gap is common. In one well-known trial, 60 percent of adults who received six weeks of CBT responded, but 39 percent reached remission [4]. Looking further out, a 2024 network meta-analysis of 13 trials estimated that about 41 percent of people who start with CBT-I are in remission at long-term follow-up, compared with about 28 percent of people who start with medication [6]. That makes CBT-I the stronger first choice. It also means most people are not fully better after one course, and the authors of the trial above noted that few patients reach complete remission with any single treatment [4].
So if your sleep improved but did not resolve, you are in good company, and you have information to work with.
🧭 Key takeaway: CBT-I helps many people, but in studies, remission after one course is closer to four in ten than to nine in ten. Partial improvement is a reason to reassess, not proof that treatment failed.
Three misconceptions about CBT-I not working
"I felt worse in the first few weeks, so it wasn't working." Early discomfort is expected. The American Academy of Sleep Medicine (AASM) guideline lists daytime tiredness, irritability and trouble concentrating as the main harms of CBT-I, and notes that they are mostly limited to the early stages of treatment and typically resolve by the end [1]. A secondary analysis of a trial of 160 adults also found that how much someone improved early on did not reliably predict how they would be doing after six weeks [7]. Quitting during the hardest week can turn a course that was working into one that "didn't work." Our CBT-I page for Tennessee explains how a course with us is structured.
"I tried the sleep tips, so CBT-I doesn't work for me." Sleep hygiene advice about caffeine, screens and a cool bedroom is not CBT-I. The AASM advises against using sleep hygiene on its own as a treatment for chronic insomnia [1], and a 2024 analysis of 241 trials found that sleep hygiene education added little to remission compared with the core components of CBT-I [8]. If what you tried was a list of tips, you have not yet tried CBT-I. Our overview of what CBT-I includes and who it helps shows the difference.
"If CBT-I didn't fix it, my insomnia can't be treated." Not reaching remission tells you something about the plan, not about your prognosis. CBT-I still works when insomnia comes with a psychiatric or medical condition, including depression [9][10], other sleep disorders can be evaluated, and medication is a recognized next step that can be discussed with a prescriber when CBT-I alone has not been enough [2][3].
🧩 Key takeaway: Early discomfort, a tips-only program and an incomplete result are three different situations. None of them, on its own, means CBT-I cannot help you.
First check: what does "didn't work" mean for you?
Start by naming the problem precisely, because each version points somewhere different.
Did you get partway, or nowhere?
Consider one pattern. You started at a point where insomnia was running your days. After eight sessions, you fall asleep within half an hour most nights, you wake once instead of four times, and the dread at bedtime has mostly gone. But you still wake at 4 a.m. twice a week and cannot get back to sleep, and on those days you feel foggy. On a questionnaire you may have moved from severe to mild. That is a response without remission, and the question is what is still driving the early waking, not whether CBT-I is worthless.
Or a different pattern. You went through a course and nothing moved: the same hours, the same awakenings, the same exhaustion, even on nights when you followed the plan exactly. That is closer to non-response, and it makes the next two checks, whether the treatment was complete and whether something else is going on, more urgent.
Did you give it long enough?
The AASM describes a full course of CBT-I as typically 4 to 8 sessions, guided by sleep diaries throughout [1]. In the trial analysis mentioned above, sleep gains from CBT alone took two to three weeks on average to reach their best within a six-week course, compared with about one week when medication was added [7]. CBT-I is slower to start than a pill, and that is part of the design. A judgment made in the second week is a judgment made too early.
There is no research-based rule for exactly how many weeks to wait before calling a course a failure. In our clinical experience, the more useful question is whether you completed a full course with the core components in place, which is the next check.
📏 Key takeaway: "It didn't work" can mean partial improvement, no change, or a course that ended early. Name which one applies before deciding what to do next.
Second check: was it full CBT-I, and how was it delivered?
The core components
CBT-I is a package, not a single technique. In the AASM's definition, it combines cognitive strategies with education about sleep regulation, stimulus control and sleep restriction, and it often adds sleep hygiene and relaxation [1]. Stimulus control means going to bed only when sleepy, getting up when you cannot sleep, keeping the bed for sleep and sex, waking at the same time every morning and avoiding naps [1]. Sleep restriction means limiting time in bed to roughly the amount you actually sleep, then adjusting that window up or down based on your diary until sleep is solid and sufficient [1].
The component analysis of 241 trials found that cognitive restructuring, sleep restriction and stimulus control were among the parts most linked to remission. Relaxation procedures, by contrast, looked "potentially counterproductive," possibly because they can encourage lying in bed longer while awake [8]. Those are statistical associations across trials rather than head-to-head tests, but a program built mostly on relaxation and hygiene may have left out the parts most linked to remission.
Dose and format
More sessions are not automatically better. In one randomized trial of 86 adults with sleep-maintenance insomnia, 58.3 percent of those given four sessions two weeks apart improved meaningfully by the end of treatment, compared with 43.8 percent given one session, 22.2 percent given two and 35.3 percent given eight [11]. That finding applies to the protocol tested, but it shows that structure and spacing matter, not just the count.
Format matters too, though less than people fear. The AASM calls one-on-one, in-person CBT-I with a trained provider the most widely studied and generally the best available option [1]. The 2024 component analysis found in-person, therapist-led programs had the strongest link to remission, although it could not show that in-person care was better than self-help with human encouragement [8]. At the same time, a network meta-analysis of 52 trials, as corrected in 2025, found that every format it examined reduced insomnia severity compared with a waitlist, from individual and group sessions to telehealth, apps and guided programs, and no format was clearly better than another [12][13]. A digital program is real treatment. In our clinical experience, if one did not work for you, a course with a trained clinician is a reasonable next step, not a repeat of the same thing.
Sticking with the hard parts
Sleep restriction and fixed bedtimes and wake times can be hard to keep up, because they often require real changes to daily life, and they may be the parts that matter most [14]. A 2013 review found that studies estimated 14 to 40 percent of participants drop out of CBT-I before the midpoint, and that in one of the studies it reviewed, continuing to follow stimulus control and sleep restriction was the best predictor of improvement in how long it took to fall asleep and time awake at night [14]. The review also called the overall evidence on adherence inconclusive, so it would be wrong to say that people who did not improve simply did not try hard enough [14].
Some people also had good reasons for a lighter version. The AASM notes that sleep restriction may not be appropriate for people in high-risk jobs such as driving or operating heavy machinery, or for people prone to mania or with poorly controlled seizures [1]. If your clinician softened the schedule for safety, that is worth knowing when you look back at the result.
🛠️ Key takeaway: Before concluding that CBT-I failed, check what you actually received: the core components, a sensible dose, a sleep window that was adjusted over time, and enough support to stick with the hardest weeks.
Third check: is something else keeping sleep stuck?
When a complete course of CBT-I has not done enough, the next question is whether insomnia is the whole picture. The 2023 European Insomnia Guideline recommends a full clinical interview, sleep questionnaires and diaries as the basis of assessment. It recommends an overnight sleep study when another sleep disorder is suspected, such as sleep-related breathing problems or periodic limb movements, and for insomnia that has not responded to treatment [3].
A few possibilities are worth raising with a clinician:
Sleep apnea. Insomnia and sleep apnea can occur together. In one clinic sample, 141 of 455 people starting CBT-I also had diagnosed sleep apnea, and their improvement was similar to everyone else's [15], so apnea does not by itself rule CBT-I out. In our clinical experience, when both are present, addressing only one can leave you partly better. Our article on insomnia and sleep apnea in midlife women covers how the two get separated.
Restless legs. An urge to move your legs that builds when you are still and eases with movement is a different problem from a mind that will not settle. Our guide to telling restless legs from insomnia walks through it.
Body-clock timing. If you can sleep well but only on a schedule that does not match your life, the issue may be circadian timing rather than insomnia alone. A sleep clinician can help sort out whether timing, rather than insomnia alone, is the main issue.
Mood, anxiety, trauma and pain. In our clinical experience, these often travel with insomnia. CBT-I still helps when insomnia comes with another condition: in a meta-analysis of 37 trials of insomnia alongside psychiatric or medical conditions, 36 percent of people were in remission after CBT-I compared with 17 percent in control groups, though the results were not broken out by specific condition such as trauma or pain [9]. In people with major depression, CBT-I improved both insomnia remission and depression response [10]. But a co-occurring condition may need its own treatment too. The PHQ-9 and GAD-7 screeners, both validated against clinical interviews [16][17], are a quick way to see whether depression or anxiety deserve a closer look.
Medications, alcohol and caffeine. In our clinical experience, a review of what you take and when, including over-the-counter sleep aids and evening alcohol, belongs in any reassessment. Make medication changes with your prescriber.
🔎 Key takeaway: When a full course of CBT-I falls short, the European insomnia guideline supports checking for other sleep disorders, including a sleep study for treatment-resistant insomnia. Co-occurring conditions may need treatment alongside the insomnia.
When insomnia comes back after CBT-I
Some people do well in CBT-I and then, months later, find the old pattern returning. Studies have not measured how often that happens, but the average benefit of CBT-I does shrink somewhat over time, so it is worth planning for. A meta-analysis of 30 trials found that CBT-I's advantage over control conditions was clear at 3, 6 and 12 months, but it shrank over that year [18]. In one trial that followed people for two years, most gains held, with remission rates of 44 to 63 percent at 24 months across four treatment groups, all of which received CBT and two of which also received medication [19].
What about "booster" sessions? The evidence is thin. In that same trial, extra monthly CBT sessions after the initial course did not improve long-term results on average [4][19]. We found no study testing booster sessions for people whose insomnia returned. In our clinical experience, a return of insomnia often follows a stretch of stress, illness or travel that loosened the routine. Going back to a fixed wake time and the stimulus-control rules is a reasonable first step. If that does not settle things, a few sessions with a clinician to review your diary and adjust the plan is a sensible, low-cost move, but it is a practical judgment rather than a tested protocol.
🔁 Key takeaway: CBT-I's benefits usually last, but they can fade. A return of insomnia is a reason to revisit the skills and, if needed, the plan. It is not proof that the first course was wasted.
Options after reassessment
Completing or adapting CBT-I
If the reassessment shows that the first course was missing core components, ended early, or was a self-guided program you could not keep up with, the most direct option is a full course with a clinician trained in CBT-I. Our specialized therapy team offers CBT-I, and if depression, anxiety or trauma is part of the picture, treatment for that condition can run alongside the sleep work. No study we found has tested a specific "second course" protocol for people who did not respond to a first one, so this is a decision to make with your clinician based on what the reassessment found.
When medication is part of the plan (prescriber-led)
Medication decisions belong with a prescriber. Our psychologists can name a partial response and recommend a referral, but they do not prescribe. Guidelines treat medication as a reasonable option when CBT-I alone has not been enough. The American College of Physicians recommends a shared discussion of the benefits, harms and costs of short-term medication in that situation, though it rates the recommendation weak and the evidence low quality [2]. The European guideline also says a medication can be offered when CBT-I is not sufficiently effective [3]. The AASM rated each of its individual medication recommendations as weak [20], a grade that reflects how certain the evidence is, not a finding that the medications do not work. Starting with medication and CBT-I together was not clearly better than CBT-I alone over the long term [6].
A simple way to decide your next step
Use this as a starting point, not a verdict:
If you improved but are not where you want to be, treat it as a partial response. Ask what is still driving the remaining nights, and whether the plan can be adjusted or extended.
If what you tried was mostly sleep tips, a short app trial or a course you stopped early, you have not had a full test of CBT-I yet. A complete course with a trained clinician is the most direct next step.
If you completed a full course with the core components and little changed, ask about other sleep disorders, including whether a sleep study makes sense, and screen for depression, anxiety and pain.
If you did well and insomnia returned, in our clinical experience it is reasonable to go back to a fixed wake time and the stimulus-control rules first, then see a clinician if it does not settle.
If medication is on the table, bring your diary and your CBT-I history to a prescriber so the decision rests on what has already been tried.
📋 Key takeaway: Partial response, an incomplete course, a complete course that did nothing, and relapse each point to a different next step.
Questions to ask before you try again
Whether you return to your original clinician or start with someone new, these questions help:
"Will this course include sleep restriction, stimulus control and cognitive work, or mainly sleep hygiene and relaxation?"
"How will you adjust my sleep window from my diary, and how often?"
"How will we measure whether it is working, and what would make us change the plan?"
"Could another sleep disorder be involved, and who would evaluate that?"
"If depression, anxiety, trauma or pain is part of this, how will that be treated alongside the insomnia?"
"If I need medication at some point, how will you coordinate with my prescriber?"
Next step: getting support
If CBT-I has not worked the way you hoped, that is not a personal failure and it is not the end of treatment. Reassessment usually starts with three questions: what "didn't work" means for you, whether you received full CBT-I, and whether something else is keeping your sleep stuck. Most people have an answer to at least one of them, and each answer points to a specific next step, whether that is a complete course, a sleep evaluation, treatment for a co-occurring condition, or a conversation with a prescriber.
Sleep not coming easily?
CBT-I is the first-line, evidence-based treatment for chronic insomnia — a clinician can help you rebuild sleep without relying on medication alone.
Frequently Asked Questions
When is it fair to decide CBT-I hasn't worked for you?
After a full course, not after the first few weeks. The American Academy of Sleep Medicine describes CBT-I as typically 4 to 8 sessions, and in one trial the sleep gains from CBT alone took two to three weeks on average to reach their best, while early progress did not reliably predict the final result. In our clinical experience, the end of a full course with a trained clinician is a reasonable point to reassess.
What if insomnia comes back after CBT-I?
A return of some symptoms does not by itself mean the treatment failed. In studies, CBT-I's average benefit held up to a year but shrank over that time, and in one trial most gains held at two years. In our clinical experience, it helps to check whether old habits have crept back, such as a drifting wake time or long stretches awake in bed. If going back to the skills does not settle things, talk with a clinician.
Does feeling worse in the first weeks of CBT-I mean it isn't working?
Not usually. The American Academy of Sleep Medicine notes that daytime tiredness, irritability and trouble concentrating can show up early in CBT-I, when the behavioral changes are first introduced, and that they typically resolve by the end of treatment. Tell your clinician how you are doing, because the sleep schedule can be adjusted. If your work involves driving or machinery, or you have bipolar disorder or a seizure disorder, sleep restriction may need to be modified for safety.
Should I try sleep medication if CBT-I didn't help?
That decision belongs with a prescriber, made together with you. US and European guidelines say medication can be considered when CBT-I alone has not been enough, and the American College of Physicians asks for a shared discussion of the benefits, harms and costs of short-term medication use. It rates that recommendation weak, based on low-quality evidence. Bring your sleep diary and CBT-I history so the decision rests on what has already been tried.
About the Author
Dr. Kiesa Kelly is a licensed clinical psychologist in Tennessee with more than 20 years of experience in psychological assessment, and insomnia is one of her core clinical specializations. She earned her PhD in clinical psychology, with a concentration in neuropsychology, from Rosalind Franklin University of Medicine and Science, following an undergraduate degree in psychology and neuroscience at Bowdoin College.
Her clinical training includes work at the University of Chicago, Vanderbilt University, the University of Wisconsin, and the University of Florida, and she completed an NIH National Research Service Award postdoctoral fellowship. Alongside insomnia, her practice focuses on ADHD and autism evaluations, OCD, and trauma. She is a psychologist, not a physician, and does not prescribe medication.
References
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Disclaimer
This article is for informational and educational purposes only and is not a substitute for professional medical or mental health advice, diagnosis, or treatment. Do not start, stop or change any medication without talking to your prescriber. If you are very sleepy during the day, take care with driving and other safety-sensitive tasks, and talk with a clinician. If you are in crisis or thinking about harming yourself, call or text 988, or call 911 in an emergency.