Thanks Becky, that's what I thought. I think she mostly gets the right amount of sleep, it's just that the timings are difficult!
I think the childminder will do whatever we ask, but I've tried capping the am nap before and it doesn't produce a long pm nap. So I am trying to make the am nap later. Sometimes to get a pm catnap I have to walk or drive for hours. I think things would be ok if we could just get her waking at 6.30 but not sure how to achieve this? I find if I time the nap right, ie not too early, she can sleep 2.5 hours. She doesn't give tired signs until I start the nap routine so it's a bit of guesswork really!!!