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Clinical overview

• Nightmare disorder involves repeated, vividly remembered dysphoric dreams that typically center on threats to survival, safety, or physical integrity and leave the person alert and distressed after awakening. The diagnosis becomes clinically relevant when the dreams are recurrent enough to disrupt sleep, mood, or daytime functioning.
• Recall is usually clear: Unlike some other parasomnias, patients usually awaken quickly and can recall the dream content in detail.
• Daytime effect: The dreams matter most clinically when they begin causing avoidance, sleep loss, anticipatory anxiety, or daytime impairment.
• Context matters: Trauma history, PTSD symptoms, medications, and substance use are important parts of the workup.

Related Guides

• Nightmare Disorder DSM Criteria Guide
• Nightmare Disorder Scales and Assessment Tools
• Nightmare Disorder Treatments and Medications
• When to Seek Professional Help for Nightmare Disorder