In role-playing games, metagaming is a term often used to describe players' use of assumed characteristics of the game.
Various factors can contribute to sleep terrors, such as: 1  Sleep deprivation and extreme tiredness. 2  Stress. 3  Fever (in children). 4  Sleeping in unfamiliar surroundings. 5  Lights or noise. 6  An overfull bladder.
Night terrors are not nightmares, which are a form of dreaming. Because the person may still be partially asleep during a night terror, they are can be inconsolable and unaware of their surroundings. They may have no memory of the episode when they awaken.