Hypersomnia is a sleep condition that causes recurring episodes of daytime sleepiness or prolonged sleep at night. People with this disorder often feel the need to nap at inappropriate times throughout the day and may have difficulty waking up after sleeping for long periods of time. In extreme cases, some individuals may lose their ability to function properly in occupational or social settings.
People who experience hypersomnia may experience other sleep disorders or have underlying issues regarding the central nervous system or alcohol abuse. Other causes may include head trauma or medication withdrawal. Common symptoms of hypersomnia include:
- Decreased energy
- Slow speech
- Loss of appetite
- Memory loss