1) Depressant 2) Hypnagogic 3) Hypnogogic 4) Inducing mental lethargy 5) Sleep inducing 6) Somniferous 7) Somnific 8) Soporific 1) Depressant 2) Hypnagogic 3) Hypnogogic 4) Somniferous 5) Somnific 6) Soporific 7) Uninteresting 
bearing sleep
• (a.) Causing sleep; somniferous; soporific.
Sop`o·rif'er·ous adjective [ Latin soparifer ; sopor a heavy sleep + ferere to bring.] Causing sleep; somniferous; soporific. ' Soporiferous medicine.' Swift. --- Sop`o*rif'er*ous*ly , adverb -- Sop`o*rif'er*ous*ness , 
Type: Term Pronunciation: sō′pō-rif′ĕr-ŭs Synonyms: soporific1
soporiferous Inducing deep or profound slumber.