Whether you're a morning person or can barely drag yourself out of bed, everyone knows how important a good night's sleep can be. Now, scientists have revealed which countries are getting the most ...

A new study says Japan loses at least 1 trillion yen (about $6.35 billion) every year because many working adults do not ...

Often described as one of the world’s most sleep-deprived nations, Japan repeatedly ranks last, or near last, in international surveys and studies on sleep duration and quality. One design firm has ...