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 happen when your toddler partially wakes up during the deep, non-REM sleep. They usually happen early in the night and can last several minutes. They're unlikely to last longer than about 15 minutes (NHS 2013) . If your toddler does suffer from night terrors, you're not alone. They're relatively common, affecting up to six per cent of children (Knott 2011) . While night terrors can seem frightening for you as a parent, they don't do your toddler any harm. He may seem wide awake, but he's actually half asleep and won't remember it (NHS 2013) . When your toddler's having a night terror, you'll probably see one or more of the signs below. He may: Yes. Unlike night terrors, nightmares happen during rapid eye movement (REM) sleep, otherwise known as dream sleep (Knott 2011) .