Ok, I know there are umpteen threads on this already, but i. We'd some advice. My 7 month old will not sleep at night. She will cry for hours (up to 9 or 10), with our going in to comfort her every 30 mins or so. She seems incapable of learning to put herself back down. From everyone I've spoken to, the kind of crying down which we've been doing for sometime now, is the last resort when all else fails, so what else is there?