A mysterious, low-frequency noise has settled over the small town of Omagh in Northern Ireland, and is keeping people awake. It’s called “The Hum,” and reports of this phenomenon have been popping up ...

A persistent, low-frequency hum has invaded the city of West Haven, Connecticut, according to many residents, leaving some shaken by an occurrence they're calling everything from mysterious to ...

Adding noise to your sleep routine may sound counterintuitive, but many people swear by wrapping themselves in a blanket of sound to get a better night of rest. You’ve probably heard of white noise.

Light sleepers understand how noises—the din of a city street, the hum of a radiator, or simply the sound of another human existing next to you—can get in the way of high-quality sleep. That’s where ...