Definitions for: Hypnagogic

[adj] sleep inducing

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

Synonyms: depressant, hypnogogic, somniferous, somnific, soporiferous, soporific