I read your story and just shook my head in wonder. Oh, I believe you, it's not that. I shook my head because I just cannot understand the thinking of someone like your new neighbor. Obviously, she expects you to reorganize your work day for her benefit... where does she come from, thinking that that is reasonable? Why should you do that?
OK, I know, this is the snowflake thread, and it is about other people who think they are so special that the world should revolve around them.
But where do you suppose that thinking comes from? (Just curious to know if there are theories about causes.)
There are something weird going on with how sound bounces around between our houses. The previous owners jolted me out of a sound sleep more than once. I honestly thought they were slamming the car doors as loud a possible. Happened to be in the front room a couple of times when they came and went and realized it they were acting normally. For some reason it echos louder in the back of my house. I needed a fan in my room anyways and that masked the noise.
I'm hoping she was jolted out of sleep and was reacting with a not quite awake brain. Then maybe we can talk about the acoustics between our houses and solve the problem.
When I worked in Civil Engineering, there were guidelines on reducing sound that involved planting shrubs or trees between the house and the source of the sound (in the case of my job, the runway where planes were taking off and landing). Is there any room for shrubs of any kind? Even a line of three foot tall flowers on stalks might help.....some types of fencing might help, but I don't recall the guidelines for that.
Heavy drapes on her window might or might not help - drapes across the entire wall might help more....but the cost goes up AND it impacts how you can arrange the furniture in the bedroom.....