I agree with the others. I would not keep a 2 year old up at naptime. The only thing I have to add is that maybe you could look at the timing of your naptime. What time do they start and end naptime? If you normally put them down at 1pm, you could bump it up to 12:30 and see if that makes a difference so that the child is awake for a longer stretch before bedtime. And the mom needs to look at what time she is putting the child to bed. Is she trying to put her to bed so early that she hasn't had time with her mom and/or isn't tired? ANd of course routine at bedtime is really key. If she is getting on a bad cycle of going to bed late and sleeping in, it will be touch to correct.