Other then what Laura mentioned...
Take flip flops so when u shower you don't step on tether hospital shower floor (eeewww)
Book or magazine- labor may take long or u will have something to read while baby sleeps, or when they take him/her for some test.
Make sure you take something comfortable to go home in! With my first I brought Pre baby jeans nobody told me I was gunna leave looking 5 months prego! I wore my maternity jeans back home :/
Take pads (thickest you can find) but if your hospital offers them just use there's an save yours lol
Bibs- onsies- and you can always take ur own blanket to feel more comfortable something plush or fleece, or your favorite pillow what ever makes you relaxed.
Forgot to mention a toiletry bag. Hope tht helps and gives u some ideas. Good luck.
Take a few baby grows, vests, mitts, little hat and blanket for baby. U will need a few pairs of pyjamas, underwear, something to wear to go home, slippers, dressing gown. Some hospitals provide maternity towels for the bleeding afterwards and nappies but some dont so tht may be a good idea aswel. Also i needed breast pads