i had my baby born on may 3, and i brought 床墊 (6pcs), M巾(10pcs), and net underwear (3pcs). regarding 奶粉, they have many brands, it depends what the doctor recommended for your baby. so you can ask for the brand you want. hope it can help you.
i bought 貼 ga. personal things like 沐浴露牙膏牙刷, face washing gel, towel, mobile charger, pajama, socks, you have to decide yourself. like me, i wouldnt take shower in hospital, so i didnt bring 沐浴露 ah.