You will be there for four days so here's coming from experience. 4 days of comfy clothes. I brought big tee shirts yoga pants socks, slippers for the shower toiletries, hair ties. Don't bring underwear they might get blood on them from post partum bleeding. Bring baby's coming home outfit, a few outfits for him to wear in the hospital. Nursing bra if you will breastfeed and a nippy if you breastfeed I heard it helps a lot. Other than that hospital provides mesh panties, pads and diapers for the baby. Ask for extra pass like the third day before you go home and stock up on the mesh panties so you don't ruin your own. Anything like diapers and wipes for the baby are provided my hospital gave me so much to take home.

change of clothes to wear in the hospital, something accessible to the nurses, a going home outfit for you, your toiletries, if you want baby to wear something other than what they supply then bring baby's hospital clothes, baby's going home outfit, nursing bra, pads you choose to use, the electronics and their chargers.