I have been there, and this is the time when it starts. I think we just hope that it happens later.My daughter is 1 1/2 and is now getting out of that bedtime temper tantrum phase although she does have them for nearly everything else. They are being more independant. She only takes one nap a day now, it seems if she naps to early in the day that our bedtime is crazy, so i put her down around 11 and she usually sleeps for 2 hrs. Then she is not exhausted by her bedtime of 7:30-8:00. When they are to overtired they have a harder time falling asleep. This has worked for me, just changing her naptime. The drama is so normal. I do have 5 kids and have been down this road before. Some kids need 2 naps for shorter times others need 1 longer nap. I would just suggest figuring out if maybe you need to change the nap schedual.Just a suggesstion. Hope this helps.