Answer: hypnagogic

AnswerCrossword Clue
hypnagogicof or relating to drowsiness.
hypnagogicof, relating to, or occurring in the period of drowsiness immediately preceding sleep also HYPNOGOGIC
hypnagogicinducing sleep; of or pertaining to drowsiness.
hypnagogicinducing drowsiness
hypnagogicof or pertaining to drowsiness