Or is mine particularly cruel to her Mummy? No matter what time she goes down, or what time she has her last meal/milk, or how dark her room is, she's up, bright as a button at 5am, rattling the cot bars to get my attention. If she sleeps until 20 past, I consider that a lovely lie-in.
Is there a scientific reason for their clockwork precision in time telling or am I just blessed with an early riser? She's 7mo btw and I am ageing rapidly.