haha. I wore nothing- just the birthday suit for both births! I think if you're not shy, you'll realize that clothes are really annoying....of course, I do understand that you can't just go running naked down a hospital corridor. :) I had my boys at home and in a birth center, so I don't know the rules of hospital rooms either. Good luck!
I was at the hospital with my second and after being in that hospital gown..it was soo uncomfortable, I wore one of my husbands tee shirts....it was MUCH more comfortable, and it got ruined, so what ever you wear, don't be to attached to it! I am having my first home birth with my third, i will probably wear nothing or a robe, anything comfortable and easy to take on and off. Good Luck!
I purchased a super soft short tank style night gown from target for my second birth... black :) labored in it at home and wore it while delivering at the hospital... write it into
my birth plan that I'd be wearing it and not a hospital gown. I love that I have a connection to that gown... it's special eveytime I wear it.
I wore an old comfy nightgown that I'd enjoyed throughout my pregnancy. It seemed fitting to birth in it. I never really got irritated with wearing clothes like some laboring women do, I prefer having something over my boobs at least. Oh, and as far as water births, a dark colored bra tank thing works great!
For my hospital births I wore the hospital gown because I didn't want to ruin anything of my own. For my home birth I labored in a light blue mumu (Hawaiian style house dress that's really billowy and loose with frilly cap sleeves), and when I was in the birth tub I wore a long brown tank top. Anytime I got out of the tub I wore a robe over my tank. None of my stuff was ruined in my home birth, and I was very comfortable. My midwife suggested not having anything red at the birth, because red isn't a very relaxing color. She actually asked my husband to change out of his red shirt when I was in labor.
I just wore big t-shirts at the birth centers I was at and usually ended up with nothing by the time I gave birth:) My hospital births, I wore the gown. I would wear my own t-shirt there though if I had another one. I would bring a robe for the hospital too.