hypnagogic

Adjective

Synonyms: soporific soporiferous somniferous somnific hypnogogic

WordNet 3.0

Adjective (1)

sleep inducingSynonyms: soporific soporiferous somniferous somnific hypnogogic

Webster's Dictionary (GCIDE)

Hypnagogic \Hyp`na*gog"ic\, a. [Gr. ? sleep + ? a carrying away.] Leading to sleep; -- applied to the illusions of one who is half asleep. [1913 Webster]