When you buy through our links, Business Insider may earn an affiliate commission. Learn more When you really need in need of a good night's sleep, there's nothing more irritating than lying awake ...

White noise machines help block out environmental sounds, which can help some people sleep. Some people also use white noise machines to help them focus or to soothe infants. White noise machines emit ...

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 ...