Chronic neurological disorder affecting sleep-wake cycles. Review possible symptoms, contributing factors, assessment, warning signs and care options.
About Narcolepsy
Chronic neurological disorder affecting sleep-wake cycles
Narcolepsy is a chronic neurological disorder that affects the brain's ability to regulate sleep-wake cycles.
People with narcolepsy experience excessive daytime sleepiness and may have sudden sleep attacks.
Editorial update (28 September 2026): structured medical content awaits clinical reviewer sign-off.
How assessment may be approached
A clinician may review sleep timing, duration, daytime symptoms, snoring or breathing pauses, medicines, caffeine, mental health, shift work and sleep environment. A sleep diary, tests or specialist referral may be used when indicated.
Care may involve sleep hygiene, treatment of an underlying medical or mental-health problem, behavioral treatment such as CBT-I, breathing treatment when sleep apnea is suspected, or a carefully reviewed medicine plan.
When to seek prompt care
Seek urgent care for severe breathing difficulty, new confusion, chest pain, fainting, dangerous daytime sleepiness causing immediate risk, or symptoms suggesting stroke or another acute condition.
Symptoms
- Excessive daytime sleepiness
- Sudden loss of muscle tone (cataplexy)
- Sleep paralysis
- Hallucinations
- Disrupted nighttime sleep
Possible causes
- Loss of hypocretin neurons
- Genetic factors
- Autoimmune response
- Brain injuries
Care and treatment options
- Stimulant medications
- Antidepressants
- Sodium oxybate
- Scheduled naps
- Good sleep hygiene
Key points
- Affects 1 in 2,000 people
- Usually begins in teens/20s
- Lifelong condition
- Manageable with treatment
Preparing for a consultation
- A two-week sleep and wake diary if possible.
- Caffeine, alcohol, tobacco, medicine and supplement use.
- Bedtime routines, shift pattern and daytime impairment.
- Any observed snoring, breathing pauses or unusual sleep behavior.
Questions worth asking
- Is Narcolepsy the most likely explanation for these symptoms, and what alternatives should be checked?
- Which symptoms or findings would require urgent review?
- Are medicines, underlying health problems or lifestyle factors contributing?
- What tests or examinations are needed now, and what can safely wait?
- What treatment or self-care options are reasonable, and when should I be reviewed again?
- What is the expected benefit, limit, cost and follow-up plan for the suggested care?
Related conditions
Related clinicians
Medical information limitations
This page summarizes listed condition information and cannot confirm a diagnosis or choose treatment. Do not start, stop or change prescribed treatment based only on this page.
Common questions
What is Narcolepsy?
Chronic neurological disorder affecting sleep-wake cycles This is general information; the name describes a possible diagnosis or clinical problem, not a personal diagnosis.
How might a clinician assess Narcolepsy?
A clinician may review sleep timing, duration, daytime symptoms, snoring or breathing pauses, medicines, caffeine, mental health, shift work and sleep environment. A sleep diary, tests or specialist referral may be used when indicated.
What care may be discussed?
Care options listed include Stimulant medications, Antidepressants, Sodium oxybate, Scheduled naps. Which option is appropriate depends on the confirmed cause, severity, preferences and contraindications.
When should Narcolepsy be checked urgently?
Seek urgent care for severe breathing difficulty, new confusion, chest pain, fainting, dangerous daytime sleepiness causing immediate risk, or symptoms suggesting stroke or another acute condition.
How should I prepare for a consultation?
A two-week sleep and wake diary if possible. Caffeine, alcohol, tobacco, medicine and supplement use. Bedtime routines, shift pattern and daytime impairment. Any observed snoring, breathing pauses or unusual sleep behavior. Bring previous reports and a current medicine list where relevant.
Can this page diagnose or treat the condition?
No. A page about Narcolepsy can help you understand possible features and questions, but it cannot confirm a diagnosis or choose treatment. A qualified clinician should assess your symptoms, history and any test results.
General information only; it is not a diagnosis or a substitute for a qualified clinician’s advice.