insomnia
noun
in·som·nia
in-ˈsäm-nē-ə 
: 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
Daniel J. BuysseExamples of insomnia in a Sentence
has suffered from insomnia virtually his entire life
Recent Examples on the Web
Common causes of insomnia are anxiety and health problems.
—Brigid Dwyer, Verywell Health, 19 May 2025
Jones now suffers from severe emotional distress, insomnia, PTSD, anxiety and depression.
—Grethel Aguila, Miami Herald, 13 May 2025
Here are some of the most common causes of insomnia, and how to address it:
1.
—Dr. Samanta Dall’agnese, CNBC, 13 May 2025
Might Help with Insomnia Some preliminary research suggests that NAD+ levels may influence your circadian rhythm regulation, which plays a role in sleep patterns, and may potentially improve insomnia.
—Lauren O'Connor, Health, 7 May 2025
See All Example Sentences for insomnia
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Brigid Dwyer, Verywell Health, 19 May 2025
Jones now suffers from severe emotional distress, insomnia, PTSD, anxiety and depression.
—Grethel Aguila, Miami Herald, 13 May 2025
Here are some of the most common causes of insomnia, and how to address it:
1.
—Dr. Samanta Dall’agnese, CNBC, 13 May 2025
Might Help with Insomnia Some preliminary research suggests that NAD+ levels may influence your circadian rhythm regulation, which plays a role in sleep patterns, and may potentially improve insomnia.
—Lauren O'Connor, Health, 7 May 2025
See All Example Sentences for insomnia
Cite this Entry
“Insomnia.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/insomnia. Accessed 28 May. 2025.
Copy CitationKids Definition
insomnia
noun
in·som·nia
in-ˈsäm-nē-ə
: prolonged inability to sleep
Medical Definition
insomnia
noun
in·som·nia
in-ˈsäm-nē-ə
: prolonged and usually abnormal inability to obtain adequate sleep especially due to difficulty falling asleep or staying asleep
called also agrypnia
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