“And, while coffee prompted psychosis and sleeplessness, cocktails were soporific.”

“I had just crawled out of my tent in a soporific state and this struck me as an unusual way to bid good morning.”

“But when she read and when she lectured, it sounded like some soporific narration from the Discovery Channel.”

“The English, on the return of the herald, went to sleep, for the presence of the herald always had a soporiferous influence.”

“The right Fin hath a soporiferous quality to make one sleep, if it be put under ones head.”

“One of these, Erdaviraph, a young but holy prelate, received from the hands of his brethren three cups of soporiferous wine.”