It's one of the most pervasive messages about technology and sleep. We're told bright, blue light from screens prevents us falling asleep easily. We're told to avoid scrolling on our phones before ...

For anyone who cares about their so-called "sleep hygiene" — essentially good, deep, restful sleep — it has become conventional wisdom that blue light will wreck it. Blue light is often the wavelength ...

For a decade, we've been told our screens are wrecking our sleep. The real culprit is far bigger than the glow from your phone. I have spent the last few weeks strapping on a pair of special orange ...

What if a simple change in your morning light exposure could help you sleep better? Our sleep patterns change across our lifespan, and, as we get older, we tend to have difficulty getting a good night ...