Ewans Mommy - I am certainly no expert, but for what it is worth, my 12.5 month old is transitioning to one nap a day (he takes 1 nap at day care Mon-Fri from 11:30 to 1:30. However, at home, we were still putting him down for 2 naps (9:00ish and 1:30ish) but that is started to go to bust. He is starting to refuse the second nap and therefore is awake too long before bed time. And he started waking up early about 6 weeks ago (5:15, 5:30 or 5:45 in the morning) when before he was waking up at 6:00 to 6:30 am. His bedtime was 7:30 (in bed at 7:15, asleep by 7:30). I thought this was a very reasonable bed time.
So I started an experiment by putting him down to bed earlier, 6:30, asleep by 6:45. We are only 4 days into it. The first 2 nights, there was no change, he was still up early. But it also coincided with an ear infection. The last 2 mornings, we have seen some progress. The first morning he slept until 6:00 and this morning until 6:30. What I think is that my son is programmed to go to bed early and rise early. He is really tired by 5:30/6:00 pm and ready for bed. And he needs more than the 10 hours at night he was getting. I think he needs at least 11 hours, on top of the 2 hours he gets for a nap.
I'm wondering if you should just skip the morning nap altogether, go for an early afternoon nap, try an early bedtime and see if that works. It will probably take a few days to see any results.
We are going to keep at our experiment for at least a few weeks to a month to see if it improves his sleeping overall. It's not easy to get him down that early with our schedules. But what can you do? Good luck.