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 ...

A Japanese sleep expert has shared a traditional technique for nodding off in just minutes - and you don't have to completely redecorate your bedroom to make it work ...

Background: Coronavirus disease 2019 (COVID-19), a global pandemic, has greatly altered our daily lifestyle. Although there have been many reports on the association between COVID-19 and sleep ...