Can't sleep? This World Sleep Day let the sounds of this Irish waterfall relax you. Caution: Do not read this article while walking, sitting in a public place, sitting in your office, or occupying any ...

Counting sheep has long been hailed as the quickest way to get off to a good night's sleep. But watching imaginary flocks flinging themselves over fences actually makes it harder to drift off, ...

Deep sleep - also known as slow-wave sleep - is crucial for memory, physical renewal and hormonal regulation. But as you get older, it substantially decreases, and scientists believe this contributes ...