DD is 10.5 months and starts her day at 4:30/5. we try and let her stay in crib but she just gets mad. Also she wakes her older brother so that doesn't help. DS went through this and eventually slept in when he was 18 months. I have tried everything (black out curtains / white noise). she naps fine during the day and actually goes to sleep within minutes of being put down with no crying so her bedtime at 7:30pm is working. Just need to know if anyone else went through this so I don't feel alone.