If you can’t wake up from sleep, there are usually several reasons. 1, severe neurasthenia, neurasthenia is a kind of neurosis, usually in extreme fatigue or rest sleep quality is poor, work tension or long-term in the case of high pressure will appear the phenomenon of nervous system is very easy to fatigue accompanied by sleep disorders, dizziness, and in sleep will have nightmares, dreaming will appear to wake up. 2, dreaming while sleeping and not waking up is also common in diseases such as cerebrovascular insufficiency of blood supply, especially in the sequelae of previous cerebral infarction, cerebral embolism, cerebral hemorrhage, stroke, etc., there will be abnormal discharge of brain neurons during sleep, and then it will be easy to dream while sleeping and not waking up when dreaming.