| They are similar to other arousal disorders that occur during deep sleep, such as somnambulism and confusional arousals. |
| Nb: the presence of confusional arousals must draw the attention on a possible idiopathic hypersomnia. |
| Bruxism: An oral activity characterized by grinding of the teeth or clenching of the jaw during sleep usually associated with sleep arousals. |
| Peak decibel thresholds that resulted in arousals or awakenings did not differ by sleep stage in any subject group. |
| Insomnia is characterized by a difficulty falling asleep with frequent arousals or waking very early in the morning. |
| These respiratory episodes end with rapid arousals of between 3 and 15 seconds that are unperceived by the patient, but that fragment the sleep. |
