Some people remember that they had a night terror the next morning.
On the other hand, most sleepers have no memory of the night terror when they wake up.
Fever - Prolonged periods of high fever due to illness can result in a night terror.
Sleep deprivation - Long periods without sleep can result in a night terror when the person is finally able to fall asleep.
Medications - Some medications are formulated to cause a chemical reaction in the brain, which in turn, can result in a night terror.