Preschool shopping list

Eek. My firstborn rookie baby boy is heading off to preschool. This is the shopping list as given to me by his new teacher:

photos for his cubby
journal
slippers
small sleeping bag
lunch box
diapers
2 boxes of wipes

Anyone have any tips? Mostly, I’m looking for guidance on a mini sleeping bag and slippers because I’ve heard that the laptoplunch bento box is the way to go for toddlers in Berkeley. Anyone tried that?

Thanks y’all!