"is one of a group of sleep disorders in which unwanted, disruptive motor activity and/or experiences during sleep play a role."

The sleeping disorder that is being classified above is parasomnia, it is where an individual could experience abnormal behaviors that he or she does not know or involuntary movements that the person does not know of as the person is asleep or as he or she is about to sleep. They are involuntary movements or behaviors that happen that aren't recognizable for they are in a sleeping state or is about to undergo in the stage of sleeping.