I agree about light being an issue in cities, too. And it's gotten worse with the advent of LED streetlights. But it's usually pretty easy to install blackout

I agree about light being an issue in cities, too. And it's gotten worse with the advent of LED streetlights. But it's usually pretty easy to install blackout curtains if you want them. Or even just to buy a comfortable eye-mask for sleeping. Effective sound-proofing is much more difficult and expensive.