This has probably been one of the most unexpected aspects of parenting for me. Before I had DC, I think I imagined that babies and small children would just conk out when they were tired [hollow laugh].
DD (3) is in a pattern of waking around 5.30, today it was 5. We can tell she's still tired but there is no hope of her going back to sleep. We have tried everything we can think of: later bedtime, earlier bedtime, black out blind, Gro bloody Clock ... She did this all throughout the winter so I don't think the light is a major factor. She is very active and runs around all day so by 6pm she is exhausted and it's just a downward slide of hell till bedtime.
DS (8 months) is currently on a knife edge because he woke up at 5.30 (which is v early for him), has only had a half hour nap this morning and won't go back to sleep in his cot. We have swimming at 12. Argh! I seem to breed horrible nappers and early wakers. Why did no one warn me about this major design flaw?