Wake windows

My daughter randomly did 4 and half hours earlier.. she normally is 4 max.. but she was pooped. She is just over 9 months

Sometimes the last wake window is stretched to this if we’re out - 9 months

Our last wake window is either 3.5 or 4. Depends if he wants a longer or shorter nap.

Yes, our one has been like this for a while now, she wakes up around 3pm and then doesn't go to sleep again until around 7.30/8pm

Last wake window is around 3.5 hours xxx