WHY do people talk in their sleep?

WHY do people talk in their sleep?

Sleep talking is a common sleep disorder and, according to some researchers, occurs in 50% of young children. Sleep talking in adults occurs in about 5% of cases. 

Dreaming is more common in people who are excitable and have experienced strong impressions, both positive and negative, on the previous day. 

Still dreaming and dreaming are different things. A dream may be fantastic, unreal. Dreaming, as a rule, reflects real events experienced by a person.