Something loose to go home in, loose gown for after they allow you to get up and shower!
I too had c-section..pack night gowns ..I bought my body pilliow with and I used it at night and when you have to cough..your going to want to hold on to it..its going to hurt some. ( more uncomfortable than a hurt) your going to want some granny panies nothing fancy;)
Hope this helps!
And course don't forget to pack camera and phone chargers!
Good luck
Im having one too...packed night gowns cuz of incision...long dress to go home in...my hospital supplies all toiletries for me and everything baby needs except going home outfit...i got some disposable cameras cuz i dont want to rely on my phone...lots of hair ties
They have really nice lists on google if you type in c section hospital bag. It is long list but it is really helpful plus they tell you why you need an item.