Sleeping through the night - part 2

Well, we've had four nights of intense sleep training (officially known as project "sleep through the night").  We started out just trying to space out Levi's feeds by 1 additional hour each night.  So I would put him to bed at 8pm and the first night I didn't feed him until 11 (which was a stretch for him, resulting in SCREAMS from 10-11).  I fed him no more than every three hours that night.  The next night I wouldn't feed him until midnight...again, screams for an hour.  No feeds for four hours went alright.  The next night was 1am and it went a little better, but he was still crying for about an hour before that first night-time feed.  This just didn't seem to be working well.  For one, Levi was still up multiple times in the night and it wasn't really spacing out his subsequent wake-ups.  Also, it was still being enforced that if Levi cried long enough, he would still be fed at night.  So there was a slight change in plans for last night.  Last night I fed Levi at 8 (ideally this would be the last feed of the night), I fed him again at 11 - when we got home from being out for the evening - and then I crawled into bed and didn't get out until morning.  I noticed Levi wake up and cry a few times during the night but in the end he made it until 9am before he ate again!  And there was no screaming like there had been in the first three nights.  I am cautiously hopeful that we are making some progress toward being a family who sleeps through the night.  It will still take some adjusting on my part *ahem* if you know what I mean...but being able to sleep at least 8 blissful hours in a row will make this all so worth it!