Teenage Girls only; what would you bring on an overnight class trip?

Since you are going there for four nights you should bring 2 pairs of pjs because you can wear them twice and 2 or 3 bras. i dont wear bras to bed but if you think you will be able to be comfy in them go ahead! And for your back it isnt that bad but you can put some coverup on it! just be yourself and you will have fun! :D