A long long long time ago!!!! lol. Seriously, my DS has been a shocker of a day sleeper since a few months old, preferring to have one nap most of the time. At best, we had a 45 min to 1 hour sleep around 10.30 and then a 30 minute nap around 2-3 o'clock. Now that he is a year old, he still prefers 1 sleep a day, but it's around 1.5 to 2 hours usually around 11 am as he is a lot more mobile now and uses up a lot of his energy. I find that he burns out around 4 ish, but if he goes down, he won't go to sleep until 9.30 - 10 pm hich is way too late and not acceptable in this house hold. He usually wakes around 7.30 - 8 am, but often goes to bed around 8 -8.30 pm.