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By Mayo Clinic staffNightmares are parasomnias — undesirable experiences that occur during sleep. You've had a nightmare if:
- Your dream wakes you up
- You feel scared, anxious, angry, sad or disgusted as a result of your dream
- You can think clearly upon awakening, and can recall details of your dream
- Your dream occurs near the end of your sleep time
- Your dream keeps you from falling back to sleep easily
When to see a doctor
Occasional nightmares aren't usually a cause for concern. If your child has nightmares, you can simply mention them at a routine well-child exam.
Talk to your doctor earlier if your or your child's nightmares:
- Become more frequent
- Routinely disrupt sleep
- Cause you or your child to fear going to sleep
- Nightmares and other disturbing parasomnias. American Academy of Sleep Medicine. http://www.aasmnet.org..ces/FactSheets/NightmareParasom.pdf. Accessed June 1, 2009.
- Nightmares. American Academy of Sleep Medicine. http://www.sleepeducation.com/Disorder.aspx?id=37. Accessed June 1, 2009.
- Sleepiness diary. National Sleep Foundation. Accessed June 2, 2009.
- Simard V, et al. Longitudinal study of bad dreams in preschool-aged children: Prevalence, demographic correlates, risk and protective factors. Sleep. 2008;31:62.