Weeellll....most 18 month olds would still be having a day sleep.

But...my DS dropped his day sleeps at about 18 months. Or, to be more accurate, he would still have a day sleep but then would not go to bed till 10.30pm. So we cut out the day nap and put him to bed at 6pm and this way he actually got more hours of sleep per day.

I was still bfing off to sleep at this point though. But because he was so tired by then he could fall asleep at 6pm without needing the breast.

I have no real advice to offer other than to reassure you that someone else has been in this situation! I would see how this pans out over the next couple of weeks. She may need a catchup nap every few days and if she is tired enough will still go with the bottle. It may be a phase out of the nap rather than all of a sudden just dropping it, KWIM.

We had to take it day to day with DS for a while, every few days he would need the nap, like a clock that needed resetting. Even now, maybe once a month or every 6 weeks he will have a nap during the day but next day we have a normal day again.