Objective: The aim of this study is to investigate whether the nocturnal panic attack has different features and might be considered as a sub type or not. Methods: Socio demo graphic data form, SCID-I, SCID-II, Panic and Agoraphobia Scale (PAS), Hamilton Depression Scale (HAM-D), Beck Anxiety Scale, and Bakırkoy Panic Disorder Behavioral Changes Form we reapplied to the participa...