Meaning & use

insomnia

noun·Academic

A persistent inability to fall asleep or stay asleep, even when tired.

See it in a sentence

Stress from work gave her insomnia that lasted for several weeks.

He tried warm milk and quiet music to fight his chronic insomnia.

A note on using this word

Refers to a medical condition or ongoing pattern, not a single restless night.

Words with a similar meaning

sleeplessness

Choose a synonym to suit the sentence. Meanings can overlap without being identical.

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