Good advice. Thanks so much. It reminded me of an experience I had once travelling with my daughter from Miami to DC (around 10 years ago now). The man who had the seat next to us offered $25 to anyone who would change with him because, I guess, he didn't want to be by a baby! She slept through the whole flight and the guy that changed with him told me it was the easiest $25 he had ever made. It was the weirdest thing.
I am not really nervous about it, just wanted to know a bit of what to expect. You have all helped a ton!