Pronunciation: /ɪnˈsɑmniə/
noun habitual sleeplessness; inability to sleep
A1 I have trouble sleeping at night because of my insomnia.
A2 She tried different remedies to help with her insomnia.
B1 Insomnia can have a negative impact on a person's overall health.
B2 The doctor prescribed medication to help with his chronic insomnia.
C1 His insomnia was so severe that he had to undergo sleep therapy.
C2 Despite trying various treatments, her insomnia persisted and affected her daily life.
adjective insomniac (relating to or suffering from insomnia)