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There are health conditions that cause a person to sleep far too much. If you frequently sleep too much, you may have a sleep disorder known as hypersomnia. There are several reasons why people sleep too much. Sleep apnea â this is a sleep disorder that causes people to stop breathing during sleep. The normal sleep pattern can be disturbed as many as hundreds of times a night. This amount of inadequate sleep leads to an increased sleepiness during the day as they are not getting enough quality sleep at night.
Narcolepsy does not actually belong to the group of excessive sleeping disorders. It is a neurological disorder that causes excessive sleepiness and interferes with normal activities of daily living. People with narcolepsy may have trouble getting to sleep at night and then find fall asleep during the day. Narcoleptics may also develop sudden weakness of the muscles and experience episodes of sleep paralysis. Another neurological disorder, restless leg syndrome, makes it difficult to sleep.