For we are not here to understand, as perhaps some have, that an author actually falls asleep while he is writing. It is true, that readers are too apt to be so overtaken; […]To sa…

It is said that the effect of eating too much lettuce is “soporific.” I have never felt sleepy after eating lettuces; but then I am not a rabbit. They certainly had a very soporifi…

And ancient soporifics—such as poisonous leaves and various opiate concoctions—were roughly as likely to kill you as they were to induce REM.

The doctor prescribed a soporific to help the patient sleep.