DictionarysoporificSleep-inducing
adjective / noun

soporific

sah-puh-RIF-ik/ˌsɑːpəˈrɪfɪk/

Causing sleepiness, or something that does so.

The soporific lecture leaves the woman struggling to stay awake.

A soporific lecture: an older woman struggles to stay awake as a lecturer reads from a thick stack of notes.
Etymology

Latin sopor means “deep sleep,” so something soporific brings on sleepiness. When applied to dull material, the word presents boredom as having a sleep-producing effect.

In context

Cats24:06
Or you could just leave the television or the or the radio on just on a um a talking channel only so that it's just soporific calming human noises.
Cat Chat Tuesday with Amanda @kittysittycatbehaviourist for all your cat behaviour questions

More examples

  • The warm room has a soporific effect on everyone.
  • For him, a long train ride is a reliable soporific.
  • She avoids medications with soporific effects before driving.

Forms

soporific · soporifics

drowsiness noun — a feeling of being ready to sleep

Similar words

sedative
Emphasizes calming effects, which may also include sleepiness.
sleep-inducing
Directly describes bringing on sleep, without suggesting boredom.