I just wash mine like any other laundry. Works fine, but if you want them sterilized, I've heard of people boiling them. As for the AIO question, if it's got a sewn-in soaker, you'll probably have to put it in the dryer and hang it if you want it to get totally dry (or just hang dry, if you're patient). If the soaker folds out it'll be faster. The ones I've made with two seperate fold out soakers dry in one dryer cycle and the ones that are sewn in take one dryer cycle and then laying out overnight. I also live in a semi-desert climate (very dry) so if you live somewhere more humid, I'd suggest getting a quick dry all-in-one or it'll take forever.