I second having a pillow, If you have a premmie, you will need some extra support when learning to BF (BFing premmies is different to FT) and I also second the pump, nothing worse than someone having the pump sitting not doing anything in someone else's room right when you need it to give your bub liquid gold.

Heaps of pairs of old daggy undies heaps of mat bras, for when the milk comes in, I always leaked through the pads. comfy clothes. Bags to put dirties in for him to take home and wash. I would suggest buying 1 tiny outfit once bub is born so that you can have bub in something of their own for your keepsake box (if you have one)

Definitelty take the camera and your phone and charger. Some healthy snacks that will last a while packed. Having little ones in hospy you tend to not be moving much and there isn't much healthy food readily available for snacking. Try sultanas, especially to help with the 1st bowel movement. Maybe a little packet of jelly and fruit things, some dried apricots. When DH comes in to visit each day, get him to bring some julienne carrots, or just some carrots and ask the MW's if there is somewhere you can cut them up. get him to bring apples and bananas too.