It must have been a work of vast ability in the somniferous school of literature.
Claude Bernard thought it the most somniferous of the opium alkaloids.
Caro spoke of his "serious blague," while Victor Hugo found him "somniferous."
Two o'clock has just struck, and no somniferous result has followed.
Quaffing it down, and betaking himself to bed, under its somniferous influence, ...