A parasomnia is a disruptive, undesirable behavior that occurs either exclusively during sleep or is exaggerated by sleep. The victim of a parasomnia may or may not be aware of these experiences.
- Night terrors
- Sleep Walking
- Tooth Grinding
If you sleep too much, you might suffer from hypersomnia.
Symptoms include sleeping in too late, chronic depression, chronic fatigue, feelings of jet-lag, circadian rhythm disorders or medical illnesses.