Traveling help

It's currently 3:15 am and we're on our first night of vacation and I'm sitting in a chair holding Kate because she keeps waking up, which she doesn't do at home, and cries every time I put her back in her pack n play. I was dumb and never put her in the thing before leaving and I've also never let her sleep away from home. Anyone have any advice? I don't want to spend my vacation sleep deprived and frustrated.