Hey Melissa -
To do the set naps, you do not waiver more than 15 mins from the time you have chosen, either before or after. It can be tough on a day that they sleep in or wake up too early, but trust me when I say that they generally don't make a habit of it with a set nap. Mine catches on very quickly
The only thing that you will have to watch for is that LO will get very sleepy and super whiny around the old nap times - don't be fooled! The first day it may be genuine, but after a couple days, it's just the body clock telling them that they should be napping at X time, not because they really are all that tired in most cases. If you follow cues with it, you will almost always get a short nap!
Since she was up late, I would push her as far as you can. What is her personality type? How does she do with a bit of OT? I am really finding that a 20 min CN really just messes up night sleep at this point, as well as results in a really cranky baby for the rest of the evening
As for lunch - I tend to split her lunch. She generally has fruit and veg at lunch along with some finger foods so I give her the fruit before her nap along with a big bottle (she has 3 per day now). When she wakes, I will give her the veg and finger foods to finish her lunch. That will get her through to dinner around 530pm.
Yesterday went so great! She was up at 545am - gross. But I took her to a playgroup anyways to amuse her - she totally loved it! Her BFF was there so that helped
She did sneak a 7 min CN on the way there, which I totally expected her to do. Wasn't worried because anything less than 15 mins doesn't do much when I am going to be keeping her up for a while anyways. She played like a crazy girl until 1130am and we left, she actually stayed awake for the whole drive without me poking and her! Had a small lunch at 1145am and was down for a nap at 1215... she only slept for 1 hr 40 mins as she was woken by our neighbours who decided to move yesterday
But, I kept her up fairly easily until 7pm! Had her in the bath at 630, then a bottle and bed. Put her down fairly settled, but she squealed once I made it downstairs - tell tale sign of a burp stuck - so up I went. Quickly picked her up and a little rub and out it came! Back down into the crib. Stroked her head for a few minutes to help her relax again and she was out at 710pm! Not a sound all night!!! Daddy woke her up when he got up this morning at 620am! 11 hrs 10 mins!!! OMG!