Meaning of the word sleeplessness in English

What does sleeplessness mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

sleeplessness

US /ˈsliːp.ləs.nəs/
UK /ˈsliːp.ləs.nəs/

Noun

the condition of not being able to sleep:

Example:
The most common symptoms are sleeplessness and depression.