Hypnos is the god of sleep. He is one of Nyx's many children, and the younger twin brother of Thanatos. He watches over the Pool of Styx and the souls of the dead, checking their names off his list. He is often seen sleeping on the job. His mother doesn't often talk to him, and neither does his brother. He is friendly and likes to talk when he isn't asleep. He is very tired often, but remains cheerful anyway. He is often a bit childish.