What are nightmares?
Nightmares are scary dreams that can wake a child leaving her upset and in need of comfort. They are very common in children. It is rare to find someone who has never experienced a nightmare.
After a nightmare, most children are afraid to go back to sleep and often do not want to be left alone.
Very young children do not know the difference between a dream and reality, so when they wake up they may not understand the concept that they were only dreaming and it is now over. They may keep insisting that something scary is about to occur.