Insomnia Disorder

The short version

●Insomnia disorder is persistent difficulty falling asleep, staying asleep, or waking too early, with daytime consequences, at least 3 nights a week for 3+ months.
●It is extremely common and often self-perpetuating: worry about sleep and compensatory habits keep it going.
●The first-line treatment is not a pill — it is CBT-I (cognitive behavioral therapy for insomnia), recommended ahead of medication by major guidelines.¹ ²
●Sleep medications can help short-term but carry tolerance, dependence, and next-day risks, and they do not fix the underlying pattern.
●Insomnia frequently travels with depression and anxiety, each feeding the other.
●Ketamine is not a treatment for primary insomnia — but where insomnia is driven by a depression that ketamine treats, sleep often improves as the depression lifts.

Clinical definition

Insomnia disorder is dissatisfaction with sleep quantity or quality marked by difficulty initiating sleep, maintaining sleep, or early-morning awakening, associated with clinically significant daytime impairment (fatigue, mood disturbance, impaired concentration). By DSM-5 it occurs at least three nights per week, persists at least three months, and happens despite adequate opportunity to sleep. It can be independent or co-occur with medical and psychiatric conditions (especially depression and anxiety), and modern nosology treats it as a disorder in its own right rather than merely a symptom. It is frequently perpetuated by conditioned arousal and maladaptive habits, which is why a behavioral treatment targets it so effectively.

How it differs from related conditions

vs. Major depressive disorder

Insomnia is both a symptom and a risk factor for depression; they commonly co-occur, and treating one helps the other.

vs. Generalized anxiety disorder

Anxiety-driven hyperarousal frequently fuels insomnia; CBT approaches address both.

vs. PTSD

Sleep disruption and nightmares are core to PTSD; insomnia there is treated within trauma-focused care.

First-line treatments

CBT-I

The recommended first-line treatment — stimulus control, sleep restriction, cognitive work, and sleep hygiene — more durable than medication.

Short-term pharmacotherapy (selective)

Sleep medications for brief, targeted use when needed, weighing tolerance and next-day risks.

Treating co-occurring conditions

Addressing depression, anxiety, pain, or sleep apnea that drive the insomnia.

Sleep-schedule and light regulation

Consistent timing, daytime light, and limiting evening screens, caffeine, and alcohol.

Evidence-based therapy guides

CBT-I All therapy guides

When standard treatments fail

When insomnia persists despite CBT-I and good sleep practices, clinicians reassess for contributing conditions (sleep apnea, restless legs, depression, anxiety, pain, substances), consider referral to a sleep specialist, and use medication judiciously. Notably, rapid-acting psychiatric agents like ketamine are not insomnia treatments; where a mood disorder is driving the sleep problem, treating that disorder is the lever.

Where ketamine fits

Ketamine is not a treatment for primary insomnia. The evidence-based first-line is CBT-I, recommended ahead of sleeping pills by major guidelines, with medication reserved for short-term, selective use.¹ ² Where ketamine is relevant is indirect: insomnia is a core symptom of depression, and when a depression that ketamine treats improves, sleep frequently improves with it. But using ketamine to treat insomnia itself is not supported — and ketamine is not a sedative-hypnotic. If insomnia is the main problem, CBT-I is the answer; if a treatable depression is driving it, that depression is where treatment (including, for the right patient, ketamine) is aimed.

Where this fits with Tovani

Tovani treats depression and anxiety, which very often disrupt sleep — and when we treat those, sleep commonly improves. But for primary insomnia, the most effective, durable treatment is CBT-I, not ketamine, and we would point you toward it (many CBT-I programs are now available digitally). If your sleeplessness is tangled up with low mood or anxiety, that is where we can help, with better sleep as a downstream benefit.

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Frequently asked

Does ketamine help with insomnia?

Not for insomnia itself — ketamine is not a sleep treatment or a sedative. But insomnia is a common symptom of depression, and when a ketamine-responsive depression improves, sleep often improves too. For primary insomnia, CBT-I is the first-line treatment.

What's the most effective treatment for chronic insomnia?

CBT-I (cognitive behavioral therapy for insomnia). Major guidelines recommend it ahead of sleeping pills because it is more durable and avoids the tolerance and next-day risks of medication. It is increasingly available through digital programs.

Are sleeping pills a good long-term solution?

Usually not. They can help short-term but carry tolerance, dependence, and next-day impairment, and they do not fix the underlying pattern. Guidelines favor CBT-I first, with medication for brief, selective use.

My insomnia comes with depression — can Tovani help?

Yes. When sleep problems are driven by depression or anxiety, treating the mood disorder often improves sleep as a result. For the insomnia component itself, we would also encourage CBT-I, which pairs well with treatment of the underlying condition.

References

Qaseem A et al. 2016, Annals of Internal Medicine — American College of Physicians guideline: CBT-I as first-line treatment for chronic insomnia disorder. (PMID 27136449)
Trauer JM et al. 2015, Annals of Internal Medicine — Systematic review and meta-analysis of cognitive behavioral therapy for chronic insomnia. (PMID 26054060)

Last reviewed by Dr. Ben Soffer, DO on June 2, 2026. This page is educational and not a substitute for clinical evaluation. A physician determines whether ketamine therapy is appropriate for your specific situation.