Enter a clue or pattern or both:
The Clue
Sleepiness (10 letter answer)
The Answer
SOMNOLENCE
Tags
Notes
The answer SOMNOLENCE is so rare that it appears less than once every 2500 puzzles.
Definition
SOMNOLENCE as a noun:
1. (sleepiness, drowsiness, somnolence) = a very sleepy state; "sleepiness causes many driving accidents"