Its not unusual for newborns to have unusual sleeping habits, particularly for them to want to sleep during the day, and stay awake at night. Remember, in the womb its dark all the time, so night and day mean nothing to them. If your babys sleeping habits need some adjustment, here are some ways to get him on track.
Dont keep quiet during the day when hes sleeping When he sleeps during the day (and all babies will) leave the door to his room open, and go about your normal daily routine. Keep the television or stereo on. This will accomplish two things. First, he will learn to sleep even through noise, which is important, since this child will be taking naps in your home for four or five years. Secondly, he will get the idea that the daytime is not the right time for long periods of sleep.
If he sleeps more than three hours at a stretch, wake him. Babies should nap during the day, of course, but more than three hours is not a nap. To get him awake, try holding him upright and tickling his feet. If that doesnt work, take off his shirt. The chill will wake him. Dont leave him uncovered for long, though. Once he is awake, sing or talk to him to keep him that way...