soporific
adjectiveInducing or tending to induce sleep.
adjectiveDrowsy.
nounA drug or other substance that induces sleep; a hypnotic.
Tending to produce sleep.
nounAnything which causes sleep, as certain medicines.
adjectiveCausing sleep; tending to cause sleep; soporiferous.
nounA medicine, drug, plant, or other agent that has the quality of inducing sleep; a narcotic.
nounSomething
Something
Tending to