I packed some shorts and old t-shirt for me. They were comfy to wear after I got to the hospital and easy to get on and off. I wore my jeans to the hospital. I did end up in a gown after my shower as they got soaked from my waters. I did get a bit cold so maybe old trackies? It depends what you wear in though.

I also packed the change of clothes for DH. Toiletries (toothbrush and deodorant) are a must for both of you. mouthwash is good if you can't manage to clean your teeth but want to freshen your mouth. Plus you will be getting lots of kisses after the birth