Jack has this new thing where he basically refuses to nap for most of the day. During the day, he is all about play time interspersed with quick cat naps here & there. At night however, he will power sleep for 10-12 hours straight. He generally retires for the evening around 11, although he has been known to stay up until 1 am, or even 4. It makes for some truly special baby and mama bonding time.