Which term describes an abrupt terror arousal, panic screaming, and intense fear during sleep?

The term describes an abrupt terror arousal, panic screaming, and intense fear during sleep is sleep terror. Sleep terrors, also known as night terrors, occur during non-REM sleep phases and typically manifest as episodes of intense fear and distress. Individuals experiencing sleep terrors may wake up suddenly and exhibit physical signs of terror, such as screaming or thrashing.

This phenomenon is distinct from nightmares, which occur during REM sleep and usually involve frightening dreams that can lead to awakening but are not characterized by the same level of arousal or physical reaction as sleep terrors. Sleep paralysis, on the other hand, is a temporary inability to move or speak while falling asleep or waking up, not specifically associated with panic or fear experiences during sleep. Insomnia refers to difficulty falling or staying asleep and does not involve the sudden terror or intense fear that characterizes sleep terrors.