I breastfeed my ds (almost 3 months) to sleep every night. All the baby books say that this is a 'bad habit' but it seems natural to me that a tired baby would fall asleep at the breast and I have no desire to wake him up in order to put him to sleep again. Also I enjoy it (but expecting to bf only to about 7 months or so, so won't be doing it for ever).
For his frequent daytime naps, when he gets grumpy I go into his room and cuddle him and he sucks on my finger so he's asleep when I put him down.
He sleeps pretty well at night for his age and is generally a pretty easy-going, chilled-out baby. I just want reassurance that what I'm doing is ok!