Well, Jackson usually chews his bully stick at night. I don't go to bed until midnight usually so around 10pm, we do our nightly 'tricks' and obedience stuff, even if it's only for 5-10 minutes. Then he usually will find a bully stick and chew for 30 minutes or so. We do our last potty trip outside around 11:30pm or so, he gets his night night treat, hops into my bed, then I follow right behind him, and we both pass out, LOL.