Are you thinking for yourself, the baby, or both???

I had really long lists for all of us but we were in for 5 days, all three of us, so we did need a little bit of stuff. Did your hossy provide you with lists? They should at least tell you what you're expected to take for your baby.

We are cloth users, and I personally wouldn't bother while in hossy, unless they offer cloth nappies with a laundering service. If they only do sposies, I would just stick with that until I got home (which is what I did). There is plenty of time to get into cloth once you're all home, I would feel that you're better off spending time together in hossy, rather than worrying about washing nappies.