I like to make sure Jesse has one sort of longish sleep a day (tis a good routine to get into for when theyre older), and he just naps at other times. Jesse will do that too during his long day sleep but i just leave him in his cot. He'll be talking his head off and when he sounds stroppy then ill go and give him his dummy (as that usually means he's getting tired again). I just play his music and turn his mobile on and he puts himself back to sleep.
So if she's not crying, i would just leave her there.. she will more than likely settle herself (maybe with the aid of her dummy).