What to bring to the hospital!

I am a minimalist. Having a c-section. What are the ABSOLUTE must haves to bring for me and baby? My SIL recommended a robe or nursing pjs. Are those even necessary? I don’t wear pjs or robes at home so I’d have to buy one especially for the hospital stay. Same with slippers or slip on shoes. Don’t have any. Absolutely necessary? Again, I just want the essentials.