somnolence

/ˈsɑmnələns/
noun
  1. A state of strong desire for sleep; drowsiness.
    • Drivers should never ignore somnolence, as it can lead to dangerous accidents.
    • The warm room and heavy meal caused a feeling of somnolence after lunch.
    • The medication lists somnolence as a common side effect.
Antonyms
What does "somnolence" mean? | whatsthatwordmean | whatsthatwordmean