Behavior that may worsen insomnia is drinking a lot of coffee. There is also possibility using some sleeping pills, but not for long time term use. There are many different names for night terrors. Sleep terrors, sleep terror disorder, Pavor Nocturnus are some of them. First we need to establish the difference between night terrors and nightmares.
Nightmares occur during the REM sleep.
The circumstances of a nightmare will frighten the sleeper and usually wake the person up. The sleeper will have a vivid memory of a long movie-like dream. During a night terror which may last from five to twenty minutes, the person is still asleep. Their eyes may be open but they are not awake. When the person does wake up, they usually have no recollection of the event other than fear, however this is not always the case.