1am is an intereseting wake up time. Is she awake for very long when she wakes up?
I apologize if these questions seem obvious, but we've been goign through some similar things, so I'm going to run down my list for you of things that actually have resulted in that wake up time.
1. Is she potty trained? If yes, does she have to go potty? If no, does she have to go potty? If she's started, but not finished, does she have to go potty? In otherwords, try to rule this out. Because it is reasonably close to her bed time, I wonder if she's getting the urge to go, but not sure what it is so it's waking her up. This happened to our DD until we started cutting back her liquids before bed.
2. Is she too cold?
3. Is she too hot?
4. Could she be teething?
5. Is she in a big bed? Could she be getting uncomfortable with the sheets/blankets in the big bed?
6. Has something frightened her recently that she could be bothered with sleeping herself? Thunder? Noises that go bump in the night, etc.
And if all else fails, have you asked her? I was actually surprised at some of the answers by daughter gave us. So then we came up with strategies together to help her sleep through the night in her own bed. It still doesn't always happen, but luckily it happens more than not lately.
Her sleep sounds OK to me personally. If she were up for a long time in the middle of the night I would wonder that, but I think the UT at this age results more in fighting bed times or early wake ups. Not the 1 am unless it lasted for 1hr plus. Just my .02.
But then what do I really know about toddlers and sleep. I have my own issues myself!