Insomnia

Pronunciation: /ˌɪnˈsɑːmniːə/

Insomnia (noun)

  1. A condition where a person cannot fall asleep or stays awake for long periods.
  2. Repeated sleep difficulty that continues over time and affects daily functioning.

Examples

  • Insomnia keeps me awake at night.
  • Insomnia makes it hard to fall asleep.