I totally believe the article. I am sensitive to noise myself and I live in a city. But I found a partial solution: Wax ear plugs called Ohropax (made in Germany). They block all noise if they are applied properly (I learned to do it over time), to the point where I can hear my heart beat at times. They provide instant relief from noise, they allow the body to fully relax! If you are alone at home with Esther, then you can't use them as you won't hear signs of danger. But when your wife is home, you can use them when you sleep. They come wrapped in cotton. I put the link below. Amazon UK sells them in large packs without the cotton wrapping but I would not trust any version that does not look like the pic below.