Thanks again for the responses and sorry for the silence on the line - have been pretty overwhelmed with all this feeding stuff. We're doing a little better--using less supplement than we were (now only supplementing in half of feedings or less), but still having the challenge of getting baby to suck long enough at breast (without SNS) to get a real feeding. I've now had multiple 1-1.5 hour nursing sessions that seemed OK (not great, but OK), meaning that she sucks for a few minutes at a time every few minutes, but when I finally take her off the breast she still seems very hungry--makes mouth and tongue gestures and cries inconsolably. So, that's frustrating given how much time I am trying to spend nursing - to then have to give her a supplement
Her weight gain is good but I still really want to quit the supplements - I have tried BFing all day and only supplementing at night, but that only works when she is satisfied after a breastfeed and that is pretty rare. So, I'm still not sure if this is a sleepy baby issue or a supply issue or a combination of the two, which may be working in a vicious cycle.
I was breastfed, to answer your question - my mother said she didn't supplement and that I simply slept long stretches between feedings. I do notice, though, that my daughter only really does that when we have supplemented - when it's just a feeding at the breast with no supplement she will hardly sleep at all, i think because she's just not getting enough to be satisfied. So frustrating! But I'm still trying to relax and be optimistic that this will all get easier.