My 2 year old going to start preschool in week and I am worry she is not having enough overnight sleep and this will affect her mood .She is falling asleep between 8-8.30pm and waking 4.45-5am. asking for food. First. The room is super dark, temperature not to warm not to cold. The problem is that she is cranky in the morning, falling asleep around 11 am and sleeps 1-2 hour. the preschool goes from 8.30-12.30 and I am worry she will struggle. Any tips how to break this early wakings? Counting , she sleeps betweek 8.5-9. hours. Shuldnt she sleeps more? how to achieve this?