10 Hypersomnia Symptoms
Article Sources
- 1. Miglis, Mitchell G., et al. 'Frequency and Severity of Autonomic Symptoms in Idiopathic Hypersomnia.' Journal of Clinical Sleep Medicine, 15 May 2020, jcsm.aasm.org/doi/10.5664/jcsm.8344
- 2. 'Hypersomnia Information Page.' National Institute of Neurological Disorders and Stroke, www.ninds.nih.gov/Disorders/All-Disorders/Hypersomnia-Information-Page
- 3. 'Idiopathic Hypersomnia.' Mayo Clinic, www.mayoclinic.org/diseases-conditions/hypersomnia/symptoms-causes/syc-20362332
- 4. 'Hypersomnia: Causes, Symptoms, and Treatments.' Sleep Foundation, 11 Feb. 2021, www.sleepfoundation.org/hypersomnia
- 5. 'About Idiopathic Hypersomnia.' Hypersomnia Foundation, 4 June 2021, www.hypersomniafoundation.org/ih
- 6. I;, Kas A;Lavault S;Habert MO;Arnulf. 'Feeling Unreal: a Functional Imaging Study in Patients with Kleine-Levin Syndrome.' Brain : a Journal of Neurology, U.S. National Library of Medicine, pubmed.ncbi.nlm.nih.gov/24785943
Hallucinations
In some cases, hallucinations occur as a symptom of hypersomnia. A hypnagogic hallucination occurs while falling asleep, and a hypnopompic hallucination occurs while waking up. These hallucinations may be very vivid and frightening.1Miglis, Mitchell G., et al. ‘Frequency and Severity of Autonomic Symptoms in Idiopathic Hypersomnia.’ Journal of Clinical Sleep Medicine, 15 May 2020, jcsm.aasm.org/doi/10.5664/jcsm.8344
A hallucination may be mistaken for a nightmare, especially if visual images include people or creatures surrounding the sleeper. Most hallucinations are visual, but they can also affect other senses. Some people report hearing sounds that aren't real and feeling like something is touching them.1Miglis, Mitchell G., et al. ‘Frequency and Severity of Autonomic Symptoms in Idiopathic Hypersomnia.’ Journal of Clinical Sleep Medicine, 15 May 2020, jcsm.aasm.org/doi/10.5664/jcsm.8344
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