Last night we put LO down at her normal time (8), she didn't go to sleep until 10 (after we got her up to try to wear her out). This morning she woke up before 7, was super tired and went down for a nap at 10. It only lasted 1.5 hours. She should be exhausted, and she is, but she's been fighting her afternoon nap for an hour now. This is HIGHLY unusual these days. Please tell me we're not getting into a regression!