20 Narcolepsy Statistics & Facts You Should Bear in Mind

written by / January 22, 2020

Sleep plays a vital role in maintaining good health throughout our lives. Unfortunately, due to stress, we all frequently experience various sleep-pattern deviations. As long as it happens occasionally, it’s no more than a nuisance. But imagine not ever being able to control your sleep-wake cycle. This is exactly the key problem of people with narcolepsy, a neurological disorder affecting wakefulness control.

According to the research and subsequent narcolepsy statistics and facts, the science behind these people’s sleep cycles is that their REM sleep and non-REM sleep blend into each other. Because REM is characterized by dreaming and a “paralysis” of the body—which keeps us from acting out our dreams and possibly getting injured—this overlap can become dangerous. 

At DisturbMeNot, we’ve made an effort to elaborate further on this condition, highlighting its prevalence, risks, and symptoms.

The Top 10 Key Narcolepsy Stats & Facts 

  • Narcolepsy affects 0.04% of people worldwide.
  • This condition affects 3 million people.
  • 30%–50% of people with narcolepsy have had accidents due to suddenly falling asleep.
  • Strong emotions in narcoleptic patients can induce a frightening muscle weakness called cataplexy.
  • People who have immediate relatives with narcolepsy are more likely to develop it.
  • Some narcoleptic patients have vivid hallucinations.
  • Sleep paralysis is a common occurrence among people with narcolepsy.
  • Narcolepsy can affect children as well.
  • Narcolepsy is not a mental illness.
  • The most recent data indicates that narcolepsy could be an autoimmune disorder.

Narcolepsy Facts

Narcolepsy Statistics - Featured

1. When a person has narcolepsy, this doesn’t mean they spend all their time asleep.

Contrary to a common misconception, individuals with narcolepsy don’t sleep constantly, though they do struggle with excessive sleepiness throughout the day. There’s also a heightened risk of patients falling asleep when they aren’t supposed to. In addition, though it may seem paradoxical, they may struggle with falling asleep at night.


2. There are two different types of narcolepsy

Here are some facts about narcolepsy with and without cataplexy. Type 1 narcolepsy is known to be accompanied by cataplexy, which refers to the sudden loss of muscle tone, typically due to a strong emotional response. Type 2, also known as narcolepsy without cataplexy, is marked by irrepressible daytime lapses into sleep, but without episodes of cataplexy.

(Verywell Health)

3. Strong emotions in narcoleptic patients may induce paralysis—probably one of the scariest facts about narcolepsy.

Cataplexy is a common symptom occurring in people with narcolepsy. It consists of uncontrollable muscle weakness or paralysis that happens all of a sudden (mostly during the daytime). This is usually triggered by some strong emotion, either pleasant or unpleasant (excitement, laughter, annoyance, anger). During these episodes, a person loses muscle tone and experiences weakness in their body, often a slack jaw and broken speech.


4. Some types of narcolepsy occur due to a loss of hypocretins.

Scientists studying narcolepsy offer important facts, having found that narcolepsy with cataplexy results from a deficiency of brain chemicals called hypocretins. This happens when hypocretin-producing neurons die off, which makes the REM phase of sleep in people with type 1 narcolepsy poorly regulated. This means that some of the elements of REM sleep manifest during wakefulness, such as paralysis or dreamlike phantasmagorias.

(Healthy Sleep)

5. The onset of narcolepsy usually occurs during childhood or young adulthood.

The belief that narcolepsy doesn’t affect children is one of the widespread narcolepsy myths, and the facts, it seems, have proved it wrong. Although it can occur at any point in life, it usually affects young people between the ages of 15 and 25—however, it has definitely been seen in children under 15 as well. However, it’s often either undiagnosed or misdiagnosed. Moreover, it’s usually initially interpreted as an emotional problem, attention deficit disorder, or even sleep apnea.

(Thomas Health)

6. Another of the interesting narcolepsy facts notes that it can cause hallucinations.

If you’ve ever woken up from sleep aware of everything around you but still unable to move, chances are you’ve experienced a condition called sleep paralysis. While the very possibility of being in such a state sounds scary enough, it can get even scarier and include hallucinations, which usually seem quite realistic. While this state can occur in anyone, it happens far more frequently in narcoleptic patients.

(Sleep Foundation)

7. You probably know someone with narcolepsy without being aware of it.

Compared to many sleep-related conditions, narcolepsy has a lower prevalence, but statistics show that the condition affects 1 out of 2000 people. This is still relatively common, or at least common enough for most of us to get to know someone with narcolepsy. Narcoleptic patients look just like anyone else on the outside—but they can struggle with the so-called “brain fog” while awake, making it hard to focus on daily tasks. Very often, those who aren’t informed of a patient’s condition have trouble understanding their behavior.

(Sleep Foundation)

8. Excessive sleepiness isn’t fun, but the facts about narcolepsy suggest that it’s a highly manageable condition.

The first thing that a physician will probably recommend to anyone with narcolepsy is changing their lifestyle toward a more disciplined one. Going to sleep and waking up at the same time every day, scheduling short naps during the day, exercising, and avoiding alcohol are all highly effective. Some physicians prescribe medications such as stimulants or SSRIs to alleviate cataplexy symptoms.

(Sleep Education)

9. Scientists claim that narcolepsy is an autoimmune disorder.

According to the fresh 2019 narcolepsy statistics, scientists from Denmark have found autoreactive cells in all of the analyzed blood samples of people with narcolepsy. These cells seem to “perceive” the body’s own hypocretin-producing neurons as “foreigners” set to invade them, as though they’re bacteria or viruses.

(Medical News Today)

10. Taking Provigil, a commonly prescribed drug in narcolepsy treatment, may result in psychological and physical dependence.

Provigil is relatively safe, and most people don’t face withdrawal symptoms after they’ve finished the therapy. Still, it sometimes happens, especially if the drug is used in high doses. Generally, it’s more likely to occur with people who have addictive habits and tendencies toward alcohol and drug abuse.

(Medical News Today)

Narcolepsy Statistics

Narcolepsy Statistics - Important Stats

11. Narcolepsy affects 3 million people worldwide.

Research suggests that narcolepsy affects 0.04% of people worldwide. Interestingly, this disorder is more prevalent in Japan, with roughly 1 out of 600 people suffering from narcolepsy. Meanwhile, data from the US reports that it affects 1 out of 2,000.

(Narcolepsy Network)

12. Out of all those who’ve been diagnosed with narcolepsy, statistics show that only a quarter receive therapy.

This is probably the case due to frequent misdiagnosis, since the symptoms of narcolepsy overlap with symptoms of other related disorders. A recent study has shown that up to 60% of patients get misdiagnosed, mostly with depression, insomnia, and sleep apnea.

(Narcolepsy Network)

13. People who have immediate relatives with narcolepsy are at a 20–40 times increased risk of developing it as well.

Researchers discovered mutations in the T-cell receptor gene in narcoleptic patients, which might be responsible for developing narcolepsy. However, when it comes to whether there’s a firm connection between narcolepsy and genetics, statistics show that most cases still occur in people without a family history of the disease.

(Annual Reviews)

14. Type 1 narcolepsy has an overall prevalence of 25–50 people per 100,000.

According to estimates, narcolepsy type 1 (narcolepsy with cataplexy) has an incidence rate of 0.74 per 100,000 people per year. Meanwhile, the prevalence of narcolepsy type 2 (narcolepsy without cataplexy) has been harder to verify. However, some research points to a prevalence of about 20–34 per 100,000 people. 


15. In the case of narcolepsy with cataplexy, statistics following European populations show an estimated prevalence of 0.02%. 

Narcolepsy is a relatively rare disorder in both Europe and other parts of the world. The rationale behind such data is perhaps the frequency of misdiagnosis and general unawareness of the disease and its consequences. Hence, only a few European countries have registered narcolepsy cases in databases tracking rare disorders.

(Wiley Online Library)

16. The statistics on people with narcolepsy state that about 30%–50% of them have had accidents due to suddenly falling asleep.

Activities that might endanger people with narcolepsy range from the obviously risky ones such as driving and running dangerous machinery to cooking, or even just smoking. In order to prevent the dangers, people with narcolepsy need to understand the circumstances under which they usually become unfocused and fall asleep. Additionally, they might consider avoiding jobs that require prolonged focus under monotonous conditions.

(Healthy Sleep)

17. Cataplexy affects roughly 75% of people with narcolepsy. 

Statistics on narcolepsy show that a quarter of people with narcolepsy have experienced the previously mentioned dramatic episodes of cataplexy. This data confirms that more people suffer from type 1 narcolepsy. Cataplexy attacks are short (usually less than two minutes) and the person who experiences them always stays completely conscious.

(Health of Children)

18. In the UK, there are approximately 30,000 patients with narcolepsy.

According to the UK’s statistics about narcolepsy, it’s believed that there are 30,000 people with a confirmed narcolepsy diagnosis. However, as in other parts of the world, it’s highly likely that there are numerous undiagnosed or misdiagnosed cases.

(Narcolepsy UK)

19. 68% of patients with narcolepsy claim that due to their diagnosis, they never feel like “normal” people.

Although this disorder is manageable, it can still affect an individual’s personal life and work performance. A survey showed that 45% of people struggling with narcolepsy state the disorder controls their lives. Moreover, 78% of the people surveyed agreed they had no idea what it would be like to live with narcolepsy prior to being affected by it.

(Stat News)

20. Narcolepsy statistics show that 84% of physicians feel that social media and modern entertainment contributes to a distorted perception of narcolepsy.

Recently surveyed US physicians report that many narcolepsy symptoms are usually ascribed to other conditions with similar symptoms, like depression or insomnia. Examinees living with the disorder report that they didn’t get diagnosed until approximately six years after their first symptoms showed. They all agreed that the media’s portrayal of narcolepsy is one of the greatest contributors to general unawareness and disinterest regarding this serious disorder. As a result, many are also unaware of the available treatment options.

(Stat News)


Narcolepsy Statistics - FAQs

While narcolepsy itself isn’t a life-threatening condition, it significantly decreases one’s quality of life, potentially exposing an individual to possibly fatal conditions. Most people with this disorder aren’t even aware they have it, and the symptoms are often overlooked. As a result, someone with narcolepsy may struggle with their everyday routine for over a decade before getting an accurate diagnosis. This is why it’s crucial to raise awareness and stay informed. Hopefully, our narcolepsy statistics and facts have made a considerable contribution.


Where is narcolepsy most common?

Narcolepsy is relatively rare, but in comparison to other countries, the prevalence is interestingly high in Japan, with 1 out of 600 people suffering from the condition.

Does narcolepsy worsen with age?

Narcolepsy itself shouldn’t get any worse as a person ages, but it can worsen other conditions that do aggravate with aging. Both young and old narcolepsy patients can expect excessive daytime sleepiness and trouble falling asleep in the evening, along with problems specific to the different types of narcolepsy.

How is narcolepsy diagnosed?

There are many tests used by sleep experts in order to determine a diagnosis, but the two tests considered essential for its confirmation are a polysomnogram and the multiple sleep latency test. Moreover, patients may be required to take any relevant questionnaires, such as the Epworth Sleepiness Scale.

What triggers narcolepsy?

Narcolepsy is believed to be caused by a combination of autoimmune, environmental, and genetic factors. On rare occasions, narcolepsy can be triggered by a medical condition, such as a sinus infection, sarcoidosis, stroke, tumor, etc.

What does a narcoleptic attack feel like?

Narcoleptic attacks simply refer to excessive daytime sleepiness, i.e., episodes of falling asleep during the daytime. These sleep attacks happen without warning amidst any type of activity throughout the day.

Is narcolepsy considered a mental illness?

Narcolepsy is not a mental illness. It’s a neurological disorder affecting the brain’s ability to control the sleep-wake cycle.

Does narcolepsy affect memory?

Sleep is the essence of proper daily function, so any sleep-deprived person is expected to experience certain impairments in brain performance, including slight short-term memory problems.

Does caffeine help with narcolepsy?

Yes and no. While a cup of coffee might provide short-term relief from sleepiness, narcoleptic patients need to be cautious. Too much caffeine may interact with their medications and negatively impact their nighttime sleep.

Does exercise help narcolepsy?

Yes. Regular exercise and a balanced diet promote general health and alertness for everyone, including people with narcolepsy. More specifically, exercise develops strength and endurance and improves a patient’s metabolism, which are all highly beneficial for people with narcolepsy.

Does narcolepsy affect life expectancy?

Narcolepsy is a chronic problem, and it can’t be cured, but it doesn’t usually worsen as a person ages and therefore shouldn’t affect life expectancy.

What is the best drug for narcolepsy?

According to physicians, people with mild to moderate sleepiness may benefit from modafinil or armodafinil. More severe sleepiness could require amphetamines or sodium oxybate.

Can someone with narcolepsy drive?

This is up to the patient to assess, but it isn’t recommended, especially in patients with type 1 narcolepsy—although it’s rare, cataplexy can occur while driving and cause a person to lose control of the vehicle. Still, the credible data on driving with narcolepsy is limited, but from what we know, it isn’t the safest choice.

Can narcolepsy kill you?

Narcolepsy isn’t a deadly disorder by itself, but its symptoms can put you in danger by exposing you to accidents and injuries.