Insomnia Disorder

Insomnia disorder is when you can't fall asleep, or can't stay asleep, or wake up too early and can't get back under, three or more nights a week for…

Sections

1. What’s actually keeping you up
2. CBT-I is first-line and most patients have never heard of it
3. Medication options, in order of what to reach for first
4. The sleep hygiene myth, mostly debunked at this point
5. What’s nice to hear, because most of this post is about how stubborn insomnia gets
6. A typical pattern, without the demographic detail because the pattern is what matters
7. Where this lands
8. Sources

Insomnia disorder is when you can’t fall asleep, or can’t stay asleep, or wake up too early and can’t get back under, three or more nights a week for three months or longer, and it’s actively wrecking your daytime life. That’s the definition that matters. A bad week of sleep after a stressful event isn’t insomnia disorder, that’s normal human biology doing what it does. Three months of consistently bad nights, with the rest of your life suffering for it, is the actual diagnosis. The line between the two is not subtle once you’ve been on the wrong side of it for a while.

It’s one of the most common things that comes up in this work and one of the most undertreated, because most people throw OTC sleep aids at it for years before they ever mention it to a doctor, and by then the sleep pattern has cemented into something a lot more stubborn than it would have been if it had been caught early. The melatonin, the ZzzQuil, the wine at 9 PM, the Benadryl your wife says she takes “occasionally” but takes every night, all of that is the same pattern… self-treating something that needs actual treatment, and the self-treatment is part of why the actual treatment hasn’t happened.

What’s actually keeping you up

Most adult insomnia is some combination of three things: a stressful precipitant that started the bad sleep, behaviors you adopted to cope with the bad sleep that turned out to keep the bad sleep going, and underlying physiology that’s now working against you. The precipitant might be long gone but the perpetuating behaviors are still there. That’s the classic pattern in chronic insomnia, the original cause resolved and the cope strategies that you developed during the crisis are now the engine driving the ongoing problem.

The perpetuating behaviors are sneaky because each of them, taken on its own, looks reasonable. Going to bed earlier to try to catch up on the lost sleep. Lying in bed for an extra hour hoping sleep will eventually arrive. Drinking to fall asleep faster. Napping during the day to make up for it. Checking the clock at 3 AM to see how bad it is. Staying in bed an extra hour in the morning to try to squeeze out more rest. Each of those individually feels like the right move when you’re exhausted, and together they create a sleep pattern that’s actually worse than just being tired during the day would have been.

CBT-I is first-line and most patients have never heard of it

CBT-I (cognitive behavioral therapy for insomnia, a structured eight-session treatment protocol that targets the specific behaviors and thoughts that keep insomnia going) is the first-line treatment for chronic insomnia per basically every major sleep medicine guideline on the planet, and most patients have never been offered it. The core moves are sleep restriction (you spend less time in bed, which sounds completely insane and works), stimulus control (the bed is for sleep and sex only, not for phones, not for TV, not for lying awake reviewing your career choices), and some cognitive work around the catastrophic thoughts about sleep that build up after months of bad nights.

The sleep restriction piece is the one that’s hard to talk patients into and the one that does most of the work. You start by limiting time in bed to whatever you’re actually sleeping, usually somewhere between five and six hours. So if you’re going to bed at 10 PM and getting up at 6 AM but only sleeping four hours in there, the new plan puts you in bed at midnight and out at 6 AM. You’re tired the first week, sometimes brutally tired, and that’s the point… your sleep drive needs to be strong enough to overpower the fragmentation. By the second week you start sleeping more efficiently because there’s nowhere else for the body to go. Then you gradually extend the window back out. It works. The data behind it is genuinely excellent and has been for thirty years, which is more than a lot of things in this field can claim for themselves.

CBT-I has the same response rate as sleep medications in the short term and significantly better outcomes long-term. The medications stop working when you stop taking them. The skills from CBT-I stay with you, you’ve actually rewired the sleep pattern instead of chemically forcing it. Most patients see meaningful improvement within four to six weeks, which is faster than people expect a behavioral protocol to work.

Medication options, in order of what to reach for first

If CBT-I isn’t available locally or isn’t doing enough on its own, medications are the next layer. The options:

Trazodone is the most common off-label sleep medication in psychiatry. Low dose, 25 to 100mg at bedtime, sedating in a fairly mild way, not habit-forming, mostly safe to use long-term. It isn’t a great fit for everybody but it’s the default to reach for first because the downside profile is mild and the upside is real. Some patients get morning grogginess, especially at higher doses, and the fix is usually dropping the dose rather than switching drugs.

Mirtazapine (Remeron, an older antidepressant that at low doses is mostly used as a sleep aid) at 7.5 to 15mg is similar. Increases appetite, which can be a feature or a bug depending on whether you’ve been losing weight from not sleeping or trying not to gain it. Some patients gain weight on it over months. Worth knowing before you start.

The Z-drugs (Ambien, Lunesta, Sonata, the prescription sleep drugs that aren’t benzos but act on the same general receptor system) work, work fast, and are FDA-approved for insomnia. They’ve fallen out of favor over the last decade because of tolerance, dependence, and the famous sleep-driving and sleep-eating stories that show up in the warning literature. They’re reasonable for short-term acute insomnia or for jet lag or for guys who travel and need something dependable for the occasional bad week. Not a great choice for chronic nightly use if there’s any way to avoid it.

The DORA class (Belsomra, Dayvigo, Quviviq, a newer category of sleep medications that block orexin, a wakefulness signaling chemical, rather than amplifying GABA the way the older ones do) is the newer option. Less of the dependence concern that comes with the Z-drugs. Expensive. Insurance coverage varies. They work. They’re not magic.

Benzos for sleep. Don’t. The tolerance builds within weeks, the underlying insomnia gets worse not better, the withdrawal is genuinely awful, and there’s a whole generation of older guys still on a nightly 0.5mg Klonopin from a prescriber two decades ago who’d be substantially better off the drug, and the taper to get them off is a six-month project. The benzo always feels like it’s working in week one. By month six it’s the problem.

The sleep hygiene myth, mostly debunked at this point

Most sleep hygiene advice you’ve read online is mostly useless. No screens an hour before bed, cool dark room, no caffeine after 2 PM, regular bedtime, blah blah blah. Sleep hygiene helps mild sleep problems and does basically nothing for actual insomnia disorder, and the evidence on it as a standalone treatment is weak. If you’ve already done all the obvious stuff and you’re still not sleeping, you don’t need more sleep hygiene tips, you need CBT-I or medication or both. The blog posts telling you to lower the thermostat and avoid blue light are not going to fix three months of fragmented sleep.

The exception worth singling out is alcohol. Alcohol fragments your sleep architecture in a way that’s well-documented and a lot of people with chronic insomnia are also drinking three or four drinks a night, which is the actual cause of the bad sleep, and they don’t connect the dots because the alcohol genuinely helps them fall asleep. It helps you fall asleep and then ruins the next eight hours of sleep quality, you wake up feeling like you barely slept because in terms of usable rest you barely did. If you’re drinking nightly and not sleeping well, the experiment to run is two weeks of zero alcohol and seeing what happens. The results are usually clarifying.

What’s nice to hear, because most of this post is about how stubborn insomnia gets

The good news, which doesn’t get said often enough in sleep medicine because everybody’s so busy explaining what doesn’t work: chronic insomnia is one of the more solvable problems in mental health when patients actually engage with CBT-I. The eight-week response curves are real. The data isn’t great because the trial designers were generous with their criteria, it’s great because the protocol actually works for most patients who do it. People who’ve been sleeping badly for years walk out of a CBT-I course sleeping more or less normally again, which sounds dramatic and is more or less what the trials show. The medication track has decent options too, and the patients who land on the right combination usually describe it as the first thing in years that gave them their mornings back. That’s a meaningful win and worth saying out loud, because the rest of this writeup is about all the things that don’t work.

A typical pattern, without the demographic detail because the pattern is what matters

Say you’ve got a patient whose story goes something like this: bad sleep started after a divorce or a job loss or a serious illness, never resolved, the person spent two years on Ambien, then a year on trazodone, both of which stopped working at the doses they were on. Waking up at 3 AM nightly, mind racing, gives up around 4:30 and gets up. By the time they show up, the sleep pattern has been broken so long they’ve stopped imagining a version of their life where sleep is just a thing you do without thinking about it.

The CBT-I course restricts them to a 5.5-hour window initially, 12:30 to 6 AM. They hate the protocol for two weeks. Week three the window starts to fill up. We extend to 6 hours, then 6.5. By week eight they’re sleeping seven hours uninterrupted, off the trazodone, off everything. The comment that comes back most often is some version of “I’d forgotten that sleep was just something you did.” They’d come to think of it as a problem they had to solve every night.

Sleep hygiene helps mild sleep problems and does basically nothing for actual insomnia disorder. The advice is everywhere because it’s cheap to give, not because it works.

Where this lands

If you’ve had chronic insomnia for months and you’ve been throwing melatonin and ZzzQuil at it, you’re undertreated and there are real tools available. CBT-I is the first move if you can get to it, and the online programs (the structured app-delivered versions like Somryst or the SHUTi research protocol) work pretty well if there’s no CBT-I therapist nearby. Medications are reasonable as bridges or for patients CBT-I doesn’t fully fix. The benzos and Z-drugs are tempting and a trap for long-term use, and the wine before bed is doing more damage than the convenience is worth. Most chronic insomnia gets a lot better with the right treatment, which is a sentence that should make anyone reading this who’s been sleeping badly for years take it seriously.

Sources

1. Qaseem A, Kansagara D, Forciea MA, et al. Management of Chronic Insomnia Disorder in Adults: A Clinical Practice Guideline From the American College of Physicians. Ann Intern Med. 2016;165(2):125-133. PMID 27136449.
2. van Straten A, van der Zweerde T, Kleiboer A, et al. Cognitive and behavioral therapies in the treatment of insomnia: A meta-analysis. Sleep Med Rev. 2018;38:3-16. PMID 28392168.
3. Sateia MJ, Buysse DJ, Krystal AD, et al. Clinical Practice Guideline for the Pharmacologic Treatment of Chronic Insomnia in Adults. J Clin Sleep Med. 2017;13(2):307-349. PMID 27998379.