Hello Jo. I've been following your thread for awhile now, cause your DS na dmine are the same age and yours seems quite spirited as well. I was just wondering if you just stuck to the same sched every day for a week, regardless how naps or night went, if things may turn around. I've noticed now at this age with my DS, we just keep everything the same (even if he didn't nap, had an early nap in the car, or woke early from his nap), we rarely deviate from bedtime by more than 1/2hr. Even a few months ago he wouldn't have managed well without a nap all day... or a long stretch before bed... (he would wake 1hr after bedtime and then STTN and often sleep in). But now he just sleeps. I wonder. Even if he got up early... just keep his naptime the same (12? 1?... ours is 1pm) and no matter when he wakes, get him up and go until bedtime. Stick with it for a week and see if all irons out. I know my advice is in stark contrast to the others on here, but it's what works for us now at this age... through travel, teething and crazy days! Hope things get better soon.