What stage of sleep is associated with night terrors?

Deep sleep: Night terrors are associated with enrty into the deepest sleep stages, which is why concerned parents have difficulty waking a child having one & most victims do not recall the events.Night mares are associated with shallow sleep and are remembered at least breafly by those who have them.

Initial Stages: Typically, night terrors are associated with the earlier phases if sleep and commonly occur before midnight. That is in contrast to night mares, which are associated with later stages of sleep and with rem sleep. Night mares more commonly occur after midnight, although there are exceptions. While an unpleasant nuisance, both night terrors and night mares are normal. Most kids "grow out of" them.

Night Terrors: Sws or slow wave sleep or delta sleep, patient is not aware of these terrors.