Thank you so much for your response. Yes, she is usually an independent sleeper. I agree, an hour is still kind of a short nap. If she only naps for 45 minutes (which is rare) I try to get her back to sleep, but if it's an hour I don't. She was sometimes STTN, and definitely was in the technical sense (5 hr stretch). If she woke, it was usually just once. I would change her, feed her & put her back down. She would fall back to sleep pretty quickly. She is pulling up constantly, & this morning my hubby noticed it looks like the top 2 teeth may be coming. (She doesn't have any teeth yet.). She's been much more whiny. I took her temp, no fever so just tried some teething tablets.
I think it's more these other things going on than the schedule because we do keep a routine, just don't do things at the same times every day.