Narcolepsy is one of the most dangerous sleep disorders. It’s rare, affecting only roughly 100,000 Americans. The condition causes a dysfunction in the brain mechanisms that manage sleeping and waking—causing a person to instantly fall asleep while talking, walking, driving, climbing stairs or working. Most narcoleptics are extremely fatigued during the daytime hours and can also suffer from hallucinations, muscle deterioration, sleep paralysis, and fainting.
Sleepwalking is a sleep disorder that mainly afflicts children in deep sleep where the brain continues to sleep but the body to act as though it is awake for short periods of time. Only 10 percent of children are affected by sleepwalking and most outgrow it during their teenage years. Sleepwalking is often associated with fever, sickness, medication, or stress, and sleepwalkers almost never remember what they do or say during an episode.