FTM help : Don’t judge pls! (Repost)

How do you set up what goes in your crib? Omg, I know sound so stupid but please don’t judge. Like, tell me the order: mattress - mattress protector? - sheets?

Also, can you guys tell me the brands/product of the items in your crib? Thank you so much!!!

It’s a surprise baby and I’m new to this and overwhelmed!