Sleep disruption is parents' most frequent concern during the first years of a child's life. Half of all children develop a disrupted sleep pattern serious enough to warrant a visit to the pediatrician.
- In children younger than 3½ years, peak frequency of night terrors is at least one episode per week.
- Among older children, peak frequency of night terrors is one to two episodes per month.
The doctor may want to do an evaluation to exclude other possible disorders that might cause night terrors.