Most nights DS will sleep through without a feed till 3/4am. I think it was a combination of him dropping the feeds himself and us encouraging it. Since about 7 or 8ish months I'd get DH to settle him when he woke (if before midnight) often he could do it just by rubbing his tummy for 5 minutes whereas if I got involved it would be an hour of crying while I rocked him or booby. If DH couldn't do it in about half an hour I'd go in with my boobs. Eventually I think he got sick of it taking half an hour of whinging to dad before he got his boob.