Why does my toddler keep having nightmares?

I think the night lights don't work for toddlers. They only work for children with the monster under the bed. To stop toddler nightmares you have to either have the toddler listen to the lullaby radio station or be read to sleep by an adult. Also when their thinking skill goes up the nightmares will happen less frequently.

I am curious if there is a decrease in nightmares if the toddler shares a room with a sibling or parent. This is strictly anecdotal but I have noticed that tots who share a room seem to have very few nightmares compared to those who are off on their own.