Blue light has been getting blamed for sleep interruption and eye strain. But the facts are that any bright light interferes with sleep, and computers themselves cause eye strain, an eye doctor says.
Sleep paralysis – when you wake up but feel like you can't move – seems to be more common if you sleep on your back. But we don't know why.
Our body knows how it is moving and where it is because of a sense called proprioception, a 'sixth sense' that helps your body know where it is in the world. And it works even while you're asleep.
You are tired. Would nine more minutes really hurt? Is hitting the snooze button a good idea? Should you just get out of bed? Or is snoozing a sign of a more serious medical issue?
A dietician recommends her top foods for a peaceful sleep.
Sleep paralysis and exploding head syndrome can help explain things that go bump in the night.
Research demonstrates a two-way relationship between sleep problems and sexual problems, as well as between satisfying sex and sound sleep. If you want better sex, you need better sleep.
Niamh, age 7, wants to know why we have scary dreams. But after 200 years of study, dreams are still very much a mystery.
By understanding sleep across animals we can gain insights into improving the quality of human sleep. It can also help to bolster conservation management strategies for the animals in question.
People have long been fascinated with sleepwalkers. Is it dangerous?
A wake-up call for early school mornings?
Our internal body clock is set via a combination of biology (nature), light exposure and social scheduling (nurture).
Sleep is essential for good executive functioning and for good general health. So how do candidates keep up the grueling demands of their schedules?
It seems we do dream of the things we try to suppress.
About half of us will experience at least one lucid dream in our lives, where we are aware and may be able to take control of it. What can this tell us about consciousness?
Composer Max Richter – with his epic, eight-hour-long piece Sleep – aims to be an auditory sandman.
Sleep paralysis is an enigmatic, terrifying condition in which the mind is awake but the body is asleep. But how much do we actually know about it?
Tracking sleep is now routine in monitoring overall well-being. But are the devices used to do this actually useful, or have we simply found a more sophisticated way to clock watch?
Perhaps because we all need sleep, we have an enduring interest in sleep disorders such as narcolepsy, which causes a constant irrepressible need for sleep.
Your eye movements may be changing the images in your dreams when you sleep.