Why are appliances playing elaborate tunes, and where do they come from? Two sonic designers explain how they compose for ...

Ask enough sleep nerds about the best sound machines and two very different front-runners will ultimately emerge: the Dohm and the LectroFan. The Dohm, sold by a company called Yogasleep, is a ...

“The sound machine can generate any of several types of sound, from nature [or] music,” Dr. Cory Portnuff, an audiologist at the University of Colorado Health’s Hearing and Balance Clinic, says. In ...

We all have those nights when we just can’t fall asleep or have trouble staying asleep — and poor rest can wreak havoc in all kinds of ways the next day. For some, background noise is the answer, ...