She was asleep about 6:40pm, and I heard her about 1 hour later, and again 3 hours later, but she settled herself. I went to wake her at 7am, but she was already up when I opened her door- she just hadn't called for me yet.
She did wake with a cold this morning, and that has happened before when I'm shooting for 1 nap. Inevitably we go back to 2 naps, and we're right back where we started- 2 x 30-40 min naps.