Night terrors may occur for several years. Generally they go away with time and are not an indication of any underlying emotional problems. Nightmares generally occur in the early morning hours. Children who experience nightmares can often recall the vivid details of their scary dream and may have difficulty going back to sleep. Nightmares will often center around a specific problem or life event that is troubling the child.
Parents can help by remaining calm.
Hold your child close and talk in a soft, soothing voice. Comfort and reassure your child. If possible, stay close by until he or she falls asleep. Calm, consistent handling of nightmares or terrors will help your child feel safe and secure. Iowa State University Extension.