Ear-plugs don&#x27;t help with low-frequency vibrations like that from an elevator. The manager of my last building would disable the elevator from midnight to 6AM which provided some relief.<p>Noise, vibration, light pollution (e.g., excessively bright white LED street lamps) is something more people will deal with as urbanization increases. Also, when you have a lot of neighbors in close proximity someone will keep you from getting sleep. Whenever I meet a grumpy neighbor I now assume they are sleep deprived.