Hospital Bag

What do you really need to put in it? I'm 35 weeks and i got very little sleep last night from incredible hip and pelvic pressure. With my first I think I overkilled. I think this time I'm just going to bring:

Phone charger

Phone

Earbuds

Coloring book

Light makeup

A book

Nursing gown

Granny panties

Toothbrush/Paste

Pillow

What else did you find necessary? I've been going into preterm labor and need to keep it simple so we can just grab and go. My sons overnight bag for grandma's is already packed. Hubby just needs to bring his charger, phone, laptop and a book. What am I forgetting?