Quoting Boobie On Demand:" So the other day I posted about DS sleeping like crap and someone mentioned it could be 4 month sleep ... [snip!] ... on...which terrifies me lol. If your baby went through this did it permanently change their sleep patterns or was it temporary?"
wow Never heard of this, but this explains A LOT my son will be 4 months on the 25th and he has went from getting up 1 time to feed, to back to every 2hours with the some time habit of staying up for 2 hours in the middle of the night!