Understanding the 5 major symptoms can make a difference.

When reading about the symptoms outlined below, keep in mind that you don’t need to have all 5 symptoms to have narcolepsy.2,4

  • Excessive daytime sleepiness

    The inability or struggle to maintain wakefulness throughout the daytime, even during inopportune situations1,2

    Excessive Daytime
    Sleepiness ▶
  • Cataplexy

    A loss of muscle tone (facial or neck weakness, head drop, garbled speech, etc) with heightened emotions, such as laughter2,4,5

    Cataplexy ▶
  • Sleep Disruption

    Trouble sleeping through the night —fall asleep easily at night, but wake up often2,5

    Sleep Disruption ▶
  • Sleep Paralysis

    Brief inability to move or speak as you fall asleep or wake up2,6

    Sleep Paralysis ▶
  • Hypnogogic Hallucinations

    Feeling like you see or experience something not real, often scary, just as you fall asleep or wake up2,5

    Hallucinations ▶

If you think you have any of these symptoms, talk to a sleep specialist.

Narcolepsy is a chronic disorder involving nerve cells and chemicals in the brain.6 Unfortunately, it’s frequently not understood, and approximately half of the people affected by it remain undiagnosed.5 Use the Narcolepsy Symptom Screener to evaluate your symptoms. Learning about narcolepsy can help you have a better conversation with a sleep specialist. And when you speak with a sleep specialist, ask about diagnostic sleep tests that help identify narcolepsy. 

Next Steps

Take the Symptom Screener
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Learn How to Get Diagnosed
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Find a Sleep Specialist 


The content on this site is not meant to replace a conversation with a sleep specialist. A sleep specialist can evaluate your symptoms and make a diagnosis.