sleeplessness
/ˈsliːpləsnəs
/noun [mass noun]
Inability to sleep; insomnia: he began to suffer from bouts of sleeplessness...
- I finally read the warning about nervousness, dizziness, or sleeplessness.
- In the international classification of sleep disorders, there are well over 80 specific causes of sleeplessness.
- A number of problems can contribute to your sleeplessness during pregnancy.