somnifacients
/ˌsɑmnɪˈfeɪʃənts/
noun
- Substances or drugs that cause sleep; sleep-inducing agents.
- The doctor prescribed somnifacients to help with her severe insomnia.
- Many over-the-counter somnifacients contain antihistamines that make you drowsy.
- He avoided taking somnifacients because they left him feeling groggy the next morning.