I have a hard time with my twins who are almost 3 years old. If it's not one of them, it's the other! It seems to run in cycles, my boy was terrible about going to bed for a month, and as soon as he got better, my girl started acting up. Sometimes they both go to bed easy, but then show up in my bedroom at 12:30 or 1:30 or 2:30.....it's never easy! I have a bedtime routine that we always follow but that doesnt always make a difference. I guess all I'm saying is, you're not alone! I dont really have any advice that will help you! Actually, maybe I do, I've recommended this book over and over to people. Read Good Night, Sleep Tight, I dont remember the authors name. There's a lot of great information in the book, stuff about getting kids into a routine, but it also helps you understand reasons behind their sleep behaviors, and the things they need. Good luck!