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 most common during the first third of the night, often between midnight and 2 a.m. 1  Children often scream and are very frightened and confused. 2  They thrash around violently and are often not aware of their surroundings.