insomnia

noun

in·​som·​nia in-ˈsäm-nē-ə How to pronounce insomnia (audio)
: prolonged and usually abnormal inability to get enough sleep especially due to trouble falling asleep or staying asleep
chronic insomnia
Insomnia is a patient-reported problem characterized by difficulty falling asleep or difficulty maintaining sleep; ie, frequent awakenings, difficulty returning to sleep after awakenings, or awakening too early with inability to return to sleep.Daniel J. Buysse

Examples of insomnia in a Sentence

has suffered from insomnia virtually his entire life
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
With all that happening, the nation may have to grapple with more insomnia. Brian Steinberg, Variety, 18 July 2025 This information could help providers tailor their recommendations to the sleep challenges of their individual patients with insomnia. Kameryn Griesser, CNN Money, 17 July 2025 Kim Yates was experiencing anxiety and insomnia after having a stroke in November 2020, and her condition had worsened by April, according to court documents. Bella Waters, Kansas City Star, 2 July 2025 Despite his busy schedule, the singer reportedly still struggled with insomnia. Alex Gurley, People.com, 25 June 2025 See All Example Sentences for insomnia

Word History

Etymology

Latin, from insomnis sleepless, from in- + somnus sleep — more at somnolent

First Known Use

1739, in the meaning defined above

Time Traveler
The first known use of insomnia was in 1739

Browse Nearby Words

Cite this Entry

“Insomnia.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/insomnia. Accessed 26 Jul. 2025.

Kids Definition

insomnia

noun
in·​som·​nia in-ˈsäm-nē-ə How to pronounce insomnia (audio)
: prolonged inability to sleep

Medical Definition

insomnia

noun
in·​som·​nia in-ˈsäm-nē-ə How to pronounce insomnia (audio)
: prolonged and usually abnormal inability to obtain adequate sleep especially due to difficulty falling asleep or staying asleep

called also agrypnia

More from Merriam-Webster on insomnia

Last Updated: - Updated example sentences
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