attracting and holding interest as if by a spell; "read the bedtime story in a hypnotic voice"; "she had a warm mesmeric charm"; "the sheer force of his presence was mesmerizing"; "a spellbinding description of life in ancient Rome"
Something that is hypnotic holds your attention or makes you feel sleepy, often because it involves repeated sounds, pictures, or movements. His songs are often both hypnotic and reassuringly pleasant. a drug that helps you to sleep = sleeping pill
also called a sleeping pill, sedative, or a sedative-hypnotic medication; a medication that causes drowsiness, induces sleep onset, and/or maintains sleep