I've not experienced the problems you are having with out side sounds. Living in the south all windows are closed and the air conditioner cycles on and off. There is also a dialysis recycler here. Sometimes I don't notice (I take a lot of meds to get to sleep). However, there are times when I wake every time either turns on or off even with all the meds and ear plugs. Most times I just give up and go play games on the computer.

I'm sorry that you are so sensitive to the sounds around you.
kebs