anyone has problem with toddler's sleep? my son 3 y.o. doesn't want to sleep. Make me awake until 3 am or 4 am almost every day!

It's good that he takes naps in the afternoons. And 30-60 mins each time is good enough. Your night routine seems great too. Have you tried winding him down before bed? Keeping the lights dim, limiting the bedtime story to perhaps only one and by 9pm (or whatever time you want to leave him) leave him in his room and turn off the lights or just keep his night light on. Be firm, by 9pm no more interaction. I understand that he may play after you leave. Let him do so but sooner or later he will get bored and just fall asleep. Hope this helps.