Unless it was to feed them, I didn't see the nurses hold the babies. We didn't have volunteers. When the nurses weren't busy, we saw them chatting or on the computer. This really concerned me once I had one baby home and the other was still in the NICU. My husband had to go back to work after a month and we were unable to spend as much time in the NICU since they do not allow the released infant to return to the NICU and we live an hour away. I often wonder how this time affected my son. (He stayed 24 days longer than my daughter.)
I asked my NICU nurse today about if there are any volunteers coming in to hold babies. She said "yes" and that they usually come at night time and nurses there are required to cuddle/hold babies if any of them cried. I was glad to learn that.