HYPNOS is the God of Sleep, which he induces with purest opium smoked through a horn. Potentially also the God of Hyppies.
Fortunately, he has recently found a better use for his talents and gave his name to Hypnosis, the mesmerizing modern miracle of psycho-physiological somnambulism. You are feeling sleepy... Sleeeeepy.
He has three sleepy sons, most famous of which is probably MORPHEUS. zzzz