DS stopped feeding to sleep at bedtime at around 9 months or so, but would still do it very ocasionally if extremely tired until 22 months or so.

For daytime naps I stopped feeding to sleep at around 15 months - just stopped doing it and started cuddling/singing or going for a walk to get him to sleep.

In the past week he has started putting himself to sleep for day naps and is getting closer to doing it at night also. At nearly 2, he is finally ready to do it I guess.