Co-Sleeping and breastfeeding are a natural fit. When our babies started fussing (a hunger sign), my wife would pick them up, feed them, and put them down. This was a natural process. The babies never had to awake fully & cry. We did co-sleeping for about 8-10 months with ours 3 boys. Once they moved to the crib, they slept for 6-8 hours. I'm not sure how breastfeeding would work properly (2-3 hour feedings for our kids) without co-sleeping.