DS normally sleeps from 7.30 to anywhere between 7-8am unless teeth are troublesome or ill. On Saturday night we put him to bed as normal and he woke at 6.10am on Sunday. We went by the clock on Sunday and he ate and slept at normal times but continues to wake early and is a nightmare by evening as he is so tired by 6pm he wants to go to bed though I have been keeping him up to his normal time. Monday he woke at 5.50am, Tueday 6am and today 6.06am. How long until he realises the routine has changed??