This is one of the more helpful experiences I've had with our friends on the other side.
My son was born in September of 2011. At the time we were living on the 2nd floor of a two family home in an industrial area of Hillside, NJ.
I never for a second expected to leave all of the childcare responsibilities to my wife, especially since she was working the overnight shift for her job. Anytime our son cried during the night I always got up for him to let my wife rest. He would cry for his bottle every 90 minutes at one point so there were a lot of sleepless nights.
The second floor had a bit of an open concept. There was a small dining area directly behind the couch, and the kitchen was to the left of the dining area. It had a little breakfast bar in between.
This particular night I sat down on our 3 person couch that was directly in front of the dining table. It was really late at night, around 2am. I sat down on the couch and gave my son his bottle. And, as any parent can understand, I started falling asleep while giving my son his bottle. No sooner did I start falling asleep I felt someone poke right under my shoulder blade.
The poke was right behind me - even though my back was completely against the couch, and my wife was asleep in our bedroom at the time. But in my sleep deprived state I was just thankful for the help. So I looked back over my shoulder and said "Thanks" to whoever it was that kept me awake during feeding time.
I did tell my wife about it the next day, and she shared the same sentiment. We appreciated any help we got during those days:)