[Parasomnias].

Parasomnias are characterized by undesired behaviour (e.g. sleep-walk, teeth-grinding) or unpleasant experiential phenomenon (e.g. nightmares) during sleep. They are classified as arousal disorder, disturbances in the transitions between sleep states, REM-associated sleep disorders or as other parasomnias. In addition to general therapeutic measures to protect against self-inflicted and externally-inflicted injuries, different diagnostic and therapeutic options are available depending on the symptoms and the type of disorder present.