My daughter is 8 1/2 months and would religiously have a two hour nap in the afternoon up until last week. Now she is completely refusing to sleep in the day and is waking at 6.30. Before she used to wake at 7 have a bottle then go back for about an hour. She is also refusing to go to bed until at least 9pm, even though bedtime routine is started at 6pm. Any tips? Do you think it’s just a phase?