NBC Select independently determines what we cover and recommend. When you click on or buy through our links, we earn a commission. Learn more. White noise machines can help reduce outdoor noises, mask ...

If you live in an urban landscape, you may be all too familiar with the sound of traffic rushing past, dogs barking or the voices of people gathering right outside your bedroom window. Even if you don ...

Tossing and turning all night? It might be worse than you think. A bad night’s sleep can ruin your next day — and studies show consistently getting a bad night’s sleep can worsen chronic health ...