Hypersomnia is a sleep disorder in which one suffers from recurrent episodes of excessive daytime sleepiness or prolonged nighttime sleep. Although one may have had a full night of uninterrupted sleep, there is still the compulsion to nap repeatedly throughout the day, often during inappropriate times such as during a meal, during work, or in the middle of conversation. The naps usually will provide no relief from symptoms.
Other symptoms may include:
Loss of appetite
Issues with memory
Hypersomnia may cause the sufferer to no longer function in social, family, or occupational settings.
The possible causes of hypersomnia include the following:
Sleep deprivation (not getting enough sleep at night)