My DD is 8 weeks old and I'm trying to establish regular naps in the day (She's sleeping well at night and only wakes up once between 7pm and 7am). Should she be having 3 naps or just one in the morning and one in the afternoon? Also, how long roughly should each nap be? I know all babies are different, but I'm a bit clueless as to how many hours sleep she should be getting in the day.