Our 38 month old has become defiant, disrespectful and at times aggressive with us and his 16 month old brother. We started the tickets program for about a week now and somehow he is happy to go to bed early. He has stopped napping as of a month ago and no matter how much I try and persuade him, he refuses to nap and will only settle on quiet time in the living room. Are the tickets realistic at this age seeing that going to bed early has not really been a punishment thus far? Should I focus on trying to get him to nap instead? How does one even attempt to do that? I suspect that lack of sleep could be the problem? I am working on Alpha speech and that seems to help a tiny bit.