A: I know it's painful to see an obviously tired child refuse to sleep. But we can't "force" our children to eat, sleep, or poop -- they are in control of those basic bodily functions. And children rapidly change in their sleep cycles and need for sleep, so it's not uncommon to experience what you describe. It may be that she's ready to try to drop that second nap of the day. Experiment with it for awhile, putting her to bed at night earlier than usual to make up for the lost sleep -- and expect more afternoon crabbiness until she adjusts. It may take a week or more. Just be glad that she sleeps so well for you at nighttime and her first nap -- lots of other parents out there envy your good luck!