Even as I write that, it sounds like such a dumb question, and surely the answer is simply "yes". But at the same time I've been feeding one or two babies (12 day old twins) non-stop for 5 out of the last 6 hours, and they're still rooting. I really don't remember ds1 doing this for more than 2-3 hours max. They'll feed, fall asleep, fall off, wake up and root. I'm going slightly mad, and wondering if there's something else babies need apart from milk and cuddles that I'm forgetting?