somnolence
noun
- state of strong desire for sleep, or sleeping for unusually long periods
Wiktionary
Pronunciation: /ˈsɑm.nə.ləns/
noun
Etymology: Borrowed from Middle French somnolence, from Late Latin somnolentia, derived from Latin somnus (“sleep”), from Proto-Indo-European *swépnos (“sleep, slumber”).
- A state of drowsiness or sleepiness.