My youngest son (18 months old) just recently began preschool twice a week. Over the past week, he had two episodes of BHS. Basically, he got upset, started to crying but never actually made any noise, and knocked himself out by failing to breathe. He woke up about a minute later. Obviously, we should tell the teachers this occurred, but how much do I actually need to tell them about how to deal with it? Not that there's all that much one can actually do, but do you see this sort of thing often enough that it wouldn't surprise you terribly? My two older children went through the same preschool, and I have no fear the teachers there are doing anything untoward, but do you think I should consider the school as a possibility in bringing this on?