Yep, Amy's advice is what i'd do too. I have a 22 month old (who has just woken!) and occassionally he won't nap. The Witching Hour is awful but hopefully you'll be able to settle her down earlier than usual tonight (not too early because somethimes i find they wake up in the middle of the night). usually the rule is that "the more they sleep the more they want to sleep" is true meaning that just because they don't get a day-nap doesn't mean they will sleep well at night. But at least she's had some quiet time you've done all you can do darl.