Insomnia disorder
Difficulty initiating or maintaining sleep or early awakening occurs despite adequate opportunity, causes significant daytime distress or impairment, and persists at least three nights weekly for at least three months.
Brooke Harbor Health System
PMHNP Clinical Learning Environment
Condition Guide
Sleep complaints require more than selecting a sedating medication. Define the sleep pattern, schedule, opportunity, environment, daytime consequences, psychiatric relationship, substances and medications, and possible breathing, movement, circadian, or neurologic disorders.
Clinical application
Apply these prompts within the simulated clinical context. They support—but do not replace—clinical judgment, supervision, consultation, current guidance, local policy, law, or emergency procedures.
Diagnostic Features
DSM-5-TR diagnosis requires adequate history of timing, opportunity, duration, daytime impact and exclusions; sleepiness, fatigue and insomnia are not interchangeable.
Difficulty initiating or maintaining sleep or early awakening occurs despite adequate opportunity, causes significant daytime distress or impairment, and persists at least three nights weekly for at least three months.
Excessive sleepiness occurs despite a main sleep period of at least seven hours, with recurrent sleep lapses, prolonged nonrestorative sleep or difficulty becoming fully awake, at least three times weekly for three months.
Recurrent irresistible sleep need, lapses or naps occur at least three times weekly for three months, plus cataplexy, hypocretin deficiency or characteristic REM findings under specified conditions.
Polysomnographic obstructive events plus symptoms, comorbidity or event-frequency thresholds establish the disorder; questionnaires estimate risk but do not diagnose it.
A persistent or recurrent mismatch between the endogenous rhythm and required schedule causes insomnia, sleepiness or both with significant distress or impairment; subtype depends on timing pattern.
Non-REM arousal, nightmare, REM sleep behavior and restless legs diagnoses require their defining behaviors or sensations, frequency or impairment where specified, and exclusion of substances, medical causes and other sleep disorders.
Rating Scales & Screening
Use questionnaires to structure history and follow outcomes, then order specialty testing only when it answers a defined diagnostic question.
Seven-item self-report measure for perceived insomnia severity, distress and interference.
Open VA/DoD insomnia tools ↗Measures likelihood of dozing across situations; official licensing and use conditions apply.
Open official ESS information ↗Eight-item obstructive sleep-apnea risk screen; high risk requires diagnostic evaluation rather than treatment based on the score alone.
Open STOP-Bang ↗Daily timing and continuity data support insomnia and circadian formulation and reveal mismatch between estimates and patterns.
Open sleep diary resource ↗Assessment
A focused sleep history distinguishes insufficient opportunity, insomnia, circadian mismatch, hypersomnolence, parasomnia, and sleep disrupted by another condition.
Clarify sleep opportunity, onset and maintenance difficulty, early awakening, duration, frequency, conditioned arousal, daytime impairment, schedule variability, naps, and compensatory behaviors.
Compare preferred and required sleep timing across workdays and free days. Ask about light exposure, shift work, travel, adolescence, routines, and timing of melatonin or other interventions.
Differentiate sleepiness from fatigue. Assess total sleep, sleep attacks, cataplexy, sleep paralysis, hallucinations around sleep, medications, substances, apnea, and safety-sensitive activities.
Characterize timing, recall, dream enactment, injury, confusion, restless legs symptoms, bed-partner observations, seizures, trauma, medications, and substance effects.
Tools & Testing
Testing is targeted; not every sleep complaint requires polysomnography.
Track bedtimes, estimated sleep, awakenings, rise time, naps, substances, medications, and daytime function for at least one representative interval.
Refer for polysomnography, home apnea testing, multiple sleep latency testing, actigraphy, or neurologic evaluation when the suspected disorder and pretest conditions support it.
Treatment
Match the intervention to the diagnosed sleep-wake problem rather than treating all sleep complaints as insomnia.
First-line treatment for chronic insomnia includes stimulus control, sleep restriction or compression, cognitive and behavioral strategies, and relapse planning—not sleep-hygiene advice alone.
Precisely time light, darkness, schedule shifts, activity, and melatonin when indicated. Incorrect timing can move the sleep phase in the wrong direction.
If used, define the target, duration, reassessment plan, next-day risks, interactions, misuse potential, respiratory concerns, and how the medication fits with behavioral treatment.
Address apnea, restless legs, pain, nocturia, hot flashes, substance use, medication effects, mood episodes, anxiety, trauma, and environmental barriers as clinically indicated.
Follow-Up
Follow the outcome that matters: safe, restorative sleep and improved function.
Review sleep efficiency or timing when relevant, awakenings, daytime sleepiness, function, adherence, and the patient’s prioritized goal.
Persistent symptoms should prompt review of schedule, implementation, comorbidity, substances, medications, apnea or movement symptoms, and bipolar-spectrum activation.
Avoid abrupt discontinuation when withdrawal or rebound is possible. Create a patient-specific taper and monitor sleep, anxiety, autonomic symptoms, and safety.
Clarify responsibilities among psychiatry, primary care, sleep medicine, neurology, pulmonology, behavioral sleep clinicians, and pharmacy.
Clinical Sources
These sources support clinical reasoning but do not replace a complete assessment, current prescribing information, local policy, consultation, or individualized shared decision-making.
Clinical practice recommendations for pharmacologic treatment of chronic insomnia in adults.
Open source ↗Evidence-based assessment and management of chronic insomnia disorder and obstructive sleep apnea.
Open source ↗Current labeling for hypnotics and other sleep-related medications.
Open source ↗