Frequently when your body pulls you out of an apneic event, it is accompanied by a micro-arousal. A micro-arousal doesn't necessarily wake you up from sleep, but it pulls you out of whatever sleep stage you were in. The result is a disrupted sleep pattern and insufficient amounts of sleep. In these kinds of situations, people do not feel rested in the morning because

People with untreated sleep apnea are twelve times more likely to be involved in an automobile accident.