9. Nightmare Disorder
Is a sleep condition marked by persistent nightmares. The nightmares often happen during the REM periods of sleep and frequently show the person in a position that threatens their lives or personal safety. Although most people have had at least one nightmare in their lifetime, those who have nightmare disorder suffer them more frequently.
10. Rapid Eye Movement Sleep Behavior Disorder
Is a condition when people act out their dreams during their sleep. It involves REM (rapid eye movement) sleep and abnormal behaviour while sleeping. Screaming, shouting, laughing, weeping, flailing arms, kicking, hitting, choking, and jumping out of bed are frequent themes in the nightmares. Injury to oneself or a bed mate may come from an episode’s behaviours.