I've recently bought a couple of baby beehinds wool wraps, they ar'nt expensive for what they are and come in some nice bright colours. Not had any problems with them so far.
Edward gets much sweatier in PUL than in wool too! I don't use PUL on him very often but I like the WeeNotions poppered wraps best - the way they are cut seems to let the skin breathe more than all of the other PUL ones we tried