| After the age of 40 our sleep patterns change, and we have many more nocturnal awakenings than in our younger years. |
| In addition to this, most sufferers also experience awakenings and restlessness during their usual nighttime sleeping hours. |
| Sleep is fragmented by frequent arousals and awakenings, resulting in decreased or absent slow-wave and REM sleep. |
| Many of today's young, virulent anticapitalists experienced their social awakenings on campuses, in fields other than economics. |
| And it may also involve early morning awakenings without being able to go back to sleep. |
| Peak decibel thresholds that resulted in arousals or awakenings did not differ by sleep stage in any subject group. |
