Ok, I cannot get my toddler to take a nap. He's up in his crib crying and crying. He's been there for about 40 minutes and he has not stopped crying. Any ideas on how to make him go to sleep. He has crazy will power! He always does this whenever he gets cranky and will not fall asleep on his own. I've tried leaving him alone and letting him cry hiself to sleep but he doesn't go to sleep! He hasn't napped all day and am open to any advice some experienced moms have.