insomnia
word
Definition
A condition in which a person has difficulty falling asleep or staying asleep, even when they want or need to sleep.
Usage & Nuances
'Insomnia' is formal and often used in medical or psychological contexts. It refers to chronic or serious problems, not just the occasional sleepless night. Common collocations: 'chronic insomnia', 'suffer from insomnia', 'treat insomnia'. Do not confuse with 'sleeplessness', which is sometimes more casual.
Example Sentences
I have insomnia and can't sleep at night.
basic
Insomnia can make you feel tired during the day.
basic
Doctors can help treat insomnia.
basic
I've struggled with insomnia for years—it drives me crazy sometimes.
natural
When my mind races at night, my insomnia gets worse.
natural
He thought it was just stress, but it turned out to be serious insomnia.
natural