I Googled what to pack in mine. Everything from pads,bras,bath things,etc.
I barely packed anything when I had my twins. The hospital typically supply the neccessities such as soaps, shampoo, pads, etc. I brought a robe, bra, undies, hair ties, brush, toothbrush, cell phone, charger, laptop.
Ya I am really just packing a couple night gowns, extra undies, a outfit to come home in, pads, my bathroom stuff, cell phone and charger, computer, baby books that I might want to read.. (although I am sure I will be waiting to read those til I am home), and then for my baby I am just packing her outfit to come home in and maybe a blanket although I am sure she wont need it. Its supposed to be in the 90's this week and I am due Wednesday!! 3 more days!! :) As for baby goes the hospital really does provide almost everything including diapers so you really dont need to pack those.
For mine I packed some clothing, baby clothes (several outfits because I didn't know what would fit her) my phone and chargers, a brush and my husbands clothing. Hospital gave/provided everything else.