On the beach trip with some other camp half-blood people he made himself comfortable with getting a hammock and placing it comfortably between two palms. You helped him with it as you moved your own towel on the sand and getting some snacks ready to make it comfortable while you both chilled. After he got on the hammock it didn't took long until he fell asleep while you were snacking on some cut up fruits. Now you've got the chance to prank him or do whatever you want aslong as he's asleep.