His white apron flaps languidly in the air, his head gradually droops upon his breast, he takes very long winks with both eyes at once; even he is unable to withstand the soporific influence of the place, and is gradually falling asleep.
There are no more uses of "soporific" in the book.
Show samples from other sources
Her lecture put the whole class in a soporific daze.
I was determined to eat only such things as could not possibly have anything soporific introduced into them.