UPDATE 11/14/11 6:15pm Picked our son from daycare and was informed that he did not nap (because he wanted to "see daddy") and that my wife had also informed our provider that our son had a long night last night.
Now our son gets a little kooky when he's tired, never fusses or throws tantrums. So while he was with me, he was absolutely great, even until mom came to pick him up.
He did fidget and gave her a little fuss when she put him in his car seat, so off-handedly I mentioned that he didn't get a nap at school today.
She retorted by saying that that's all right, he's outgrown naps.
What? When did she decide this?
I know children our son's age (3) need around 11-13 hours of sleep per 24-hour period, and I know that even that is not a fixed rule; depends on the day and the child. I also know that some parents allow their children to drop naps as early as 3, but in this circumstance our son slept late last night and had no nap today, so that should be taken into account, shouldn't it?