Other than the basics I also took a pashmina wrap, with labour for DD I had it around me while people came in and out and I didn't feel like flashing my trash all over town and then when feeding I had it over me if I was feeling cool. I tend to wear singlets and then get a bit cold at times. It was also a "nice" bit of home that I used like a blanket because I was in for 5 days.
Also eye mask to block the night lights of other people if you are sharing a room and ear plugs for the same reason. Yummy fragrant skin lotion too because I didn't want to wear perfume but hospitals smell so I wanted to smell pwetty !!! I also took with me the knowledge that if I forgot something, there would always be someone prepared to get it for me and to keep it in perspective!! LIke when I raced around getting stuff for the baby in a frantic rush like the shops would magically close, never to reopen once the baby arrived!!!