It's common for people to play continuous wave sounds and other gentle nature noises on their phones to lull themselves to sleep. But this type of "pink noise" may actually be backfiring, a new Penn ...

The best white noise machines mask distractions, use screen-free controls, and offer white, pink, and brown noise options to lull you to sleep.

Falling asleep is often harder than staying asleep. You can be exhausted and still lie awake, stuck in that half-alert state where your body is ready for rest but your brain won’t quite settle. A lot ...