Soporific

a.	1.	Causing sleep; tending to cause sleep; soporiferous; as, the soporific virtues of opium.
n.	1.	A medicine, drug, plant, or other agent that has the quality of inducing sleep; a narcotic.

Noun	1.	soporific - a drug that induces sleep Synonyms: hypnotic
Adj.	1.	soporific - sleep inducing Synonyms: hypnagogic, hypnogogic, somniferous, somnific, soporiferous
	2.	soporific - inducing mental lethargy; "a narcotic speech" Synonyms: soporiferous, narcotic

Amytal, Amytal pill, Demerol, Dolophine, H, Laodicean, Luminal, Luminal pill, M, Mickey Finn, Nembutal, Nembutal pill, Olympian, Seconal, Seconal pill, Tuinal, Tuinal pill, alcohol, aloof, amobarbital sodium, analgesic, anesthetic, anesthetized, anodyne, apathetic, barb, barbiturate, barbiturate pill, benumbed, black stuff, blah, blase, blue, blue angel, blue devil, blue heaven, blue velvet, calmant, calmative, calming, cataleptic, chloral hydrate, codeine, codeine cough syrup, comatose, deadening, depressant, depressor, desensitized, detached, disinterested, dolly, doped, downer, dozy, dreamy, drowsy, drugged, drugged with sleep, dull, goofball, half asleep, hard stuff, heartless, heavy, heavy with sleep, heavy-eyed, hebetudinous, heroin, hop, hopeless, horse, hypnotic, in a stupor, indifferent, insouciant, junk, knockout drops, languid, laudanum, lethargic, liquor, listless, lotus, lullaby, mandrake, meperidine, methadone, morphia, morphine, napping, narcoleptic, narcose, narcotic, narcotized, narcous, nightcap, nodding, nonchalant, numb, numbed, numbing, opiate, opium, oscitant, out of it, pacifier, pain killer, paregoric, passive, pen yan, phenobarbital, phenobarbital sodium, phlegmatic, pluckless, poppy, purple heart, quietener, quietening, rainbow, red, resigned, scag, secobarbital sodium, sedated, sedative, shit, slack, sleep-bringer, sleep-causing, sleep-compelling, sleep-drowned, sleep-drunk, sleep-filled, sleep-inducer, sleep-inducing, sleep-inviting, sleep-producer, sleep-provoking, sleep-swollen, sleeper, sleepful, sleeping draught, sleeping pill, sleepy, sluggish, slumberous, slumbery, smack, snoozy, sodium thiopental, somnifacient, somniferous, somnolent, soother, soothing, soothing syrup, spiritless, spunkless, stoic, stretchy, stupefied, stuporose, stuporous, supine, tar, torpid, tranquilizer, tranquilizing, turps, uncaring, unconcerned, uninterested, white stuff, withdrawn, yawning, yawny, yellow, yellow jacket