somniphobia

som·ni·phob·ia
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noun

Fear of falling asleep; fear of a disaster while sleeping.

“Due to somniphobia, Jason has a compulsive habit of getting out of bed and changing his clothes at night.”

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Meanings

nounsomniphobia (uncountable)
  1. uncommonuncountablehuman sciencesFear of falling asleep; fear of a disaster while sleeping.

    Due to somniphobia, Jason has a compulsive habit of getting out of bed and changing his clothes at night.

    1 more example

    People may worry throughout the day about not being able to sleep. This worry can cause difficulties with focus or concentration. Often, somniphobia arises from a fear of having nightmares or experiencing sleep paralysis.

    2022, Cleveland Clinic, Somniphobia (Fear of Sleep)

Origin

From somni- (“sleep”) + -phobia.

Full word history & related roots →

Translations

Turkish somnifobi
  • somnifobiTranslations
Cite this entry
APA

somniphobia. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/somniphobia

MLA

“somniphobia.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/somniphobia. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “somniphobia,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/somniphobia.

Source: somniphobia on Wiktionary, CC BY-SA 4.0.