My 10 month old ds has a long morning nap, from 9.30 - 11.30 and then another shorter nap around 3 - 3.30. In anyone's experience, could having a longer morning nap as opposed to a longer lunchtime/afternoon nap, be the reason behind waking up early? DS wakes up at 5.45am most mornings, although plays happily in his cot until 6.20ish. I realise this isn't drastically early however, from 8am ds starts getting sleepy and irritable again which makes me think he needs at least an hour longer asleep in the morning