Welcome to part 2 of the Night Terrors and Nightmares Series. If you are just joining us, you might want to start with part 1 where I go over night terrors in babies and toddlers. What are Nightmares? Nightmares are very scary dreams. They usually start as a normal dream and then they take a turn for the worst. We don't remember every dream or nightmare. It's only when we wake up at the end do we remember them, even if we just wake up briefly. What age do nightmares start? This,