Sleep is fundamental to daytime function, and it runs both ways with psychiatric illness: the disorder worsens sleep and poor sleep worsens the disorder, so fixing sleep often brings downstream gains. In PTSD, disrupted sleep is usually why the patient is in a psychiatrist's office. In bipolar disorder, sleep change is the easiest symptom to recall and the best place to start the history, but it is neither necessary nor sufficient for hypomania or mania.
Why it matters
Sleep is fundamental to your ability to function during the day. It is basic to how the brain works and clears out metabolites.
“Sleep is fundamental to your ability to function during the daytime. Sorry to say. Right. It's a basic thing of how the brain works, how the brain clears out. uh metabolites that are not good for its functioning”
44:11ADHD Is Not the Only Diagnosis: Differential and Diagnostic HierarchyNov 2025 The disorder makes sleep worse and worse sleep makes the disorder worse. Get sleep on track and you often see improvements downstream.
“the disorder makes the sleep worse and then the worsening sleep makes the disorder worse. So if you get that on track, a lot of times you'll see just downstream improvements”
11:16PTSD Medications: Integrating Pharmacotherapy, Therapy, and the Treatment Frame | Episode 22Apr 2025 Patients with PTSD who end up seeing a psychiatrist, rather than remitting on their own or with a therapist, are usually there because their sleep is severely disrupted.
“if somebody has PTSD and they're coming in to see the psychiatrist and they're not just either remitting on their own slowly or working through it with a counselor or a psychotherapist, it's because the sleep is severely disrupted”
9:53PTSD Medications: Integrating Pharmacotherapy, Therapy, and the Treatment Frame | Episode 22Apr 2025 Even one drink in a night significantly affects sleep architecture. You do not need six or seven drinks and a hangover to feel it.
“If you have one drink in a night, it significantly impacts your sleep score. You don't need to be drinking six or seven drinks and really feel the hangover. Even just one drink has a significant impact on sleep architecture”
46:58ADHD Is Not the Only Diagnosis: Differential and Diagnostic HierarchyNov 2025
Sleep in bipolar disorder
Start the bipolar history with sleep: have you had at least three days in a row when you were not your normal self, did not sleep, did not need it or could not sleep, yet still had energy?
“Have you ever had at least three days in a row where you were not your normal self and you didn't sleep, didn't really need it, or you couldn't sleep even if you wanted to, yet you still had energy”
6:21The Best Bipolar Medication Review From The Best Bipolar ExpertJan 2025 Sleep change is the most recalled symptom of mania, but it is not always remembered, and it is not 100 percent necessary.
“sleep is the most recalled symptom for people with mania or having mania, changes in sleep. That's the easiest to remember, but it doesn't mean that it will be remembered, and it's also not 100% necessary to be there”
36:11How to Diagnose Bipolar Disorder: The Interview Framework That Beats Screening QuestionsFeb 2026 What is necessary is a marked change in mood (irritable, elevated, overconfident) with increased or preserved activity. Reduced sleep alone is neither necessary nor sufficient.
“what is actually necessary or sufficient is a marked change in mood, irritable, elevated, overconfident, that's not the wording in the DSM, with increased or preserved activity”
7:59The Best Bipolar Medication Review From The Best Bipolar ExpertJan 2025 The typical pattern: they feel pretty good, fall asleep easily, then wake after two or three hours as if they are done sleeping.
“But often you'll see they're feeling pretty good and they can fall asleep pretty easily. But what they do is they wake up in about two or three hours and it's like they're done sleeping”
48:06How to Diagnose Bipolar Disorder: The Interview Framework That Beats Screening QuestionsFeb 2026
It also comes up on
- Bipolar disorderGather substances and then sleep: sleep disruption, with decreased sleep and preserved or increased activity.
- DoxepinBy far one of our favorite sleep medications. It is FDA approved for sleep maintenance (we think the only one), and it helps with sleep onset as well.
- DoxepinEight hours of slightly modified sleep architecture beats five hours of terrible sleep. But if a patient could get nine hours and is staying up on their phone, why mess with their sleep architecture?
- InsomniaSleep hygiene can be taken too far: patients preoccupied with the perfect sleep environment can backfire. That does not apply to most patients, whose sleep hygiene is awful.
- OlanzapineNot for sleep alone. Use it for sleep when the sleep problem comes with schizophrenia or schizoaffective disorder, or with refractory bipolar I after the mood stabilizers are exhausted.
- Sleep apneaAsk every patient before starting a sleep medication: do you snore at night, does your partner say you snore, and if you wear a sleep tracker, does it show a lot of sleep disturbance or movement?
- Sleep hygieneSleep hygiene can be taken too far: a patient preoccupied with the absolutely perfect sleep environment can backfire. That does not apply to most patients, who have awful sleep hygiene.
- TrazodoneEight hours of slightly modified sleep architecture beats five hours of terrible sleep. But if a patient could get nine hours and is staying up on their phone, why mess with their sleep architecture at all?
From these episodes
- How to Diagnose Bipolar Disorder: The Interview Framework That Beats Screening QuestionsFeb 2026 · 2 points
- ADHD Is Not the Only Diagnosis: Differential and Diagnostic HierarchyNov 2025 · 2 points
- PTSD Medications: Integrating Pharmacotherapy, Therapy, and the Treatment Frame | Episode 22Apr 2025 · 2 points
- The Best Bipolar Medication Review From The Best Bipolar ExpertJan 2025 · 2 points
Every point above is something said on the Psychofarm podcast, with the words as spoken and a link to the moment in the episode. It is education, not medical advice, and an episode reflects what we thought when we recorded it.