DD started in a crib in her room at 4 1/2 months and would go to sleep after her regular nightly routine at 7:30. Since the time change, she will not go to sleep until about 9:00 or later. The routine hasn't changed at all. Some friends' babies go to bed around 7/7:30 so I just wanted to find out if we were "keeping" her up to late. So when does your baby go to sleep?