Our internal body clock is set via a combination of biology (nature), light exposure and social scheduling (nurture).
Lie awake and you could be playing havoc with your amygdala.
As life gets faster and working hours get longer, it's tempting to think the Sandman is paying us ever shorter visits.
The fourth episode of our podcast takes on fuel – from Olympic diets to conflict over oil in the Niger Delta.
There are plenty of devices to help monitor your sleep, but are they any good?
Performance changes if you stay awake over two days – but not in the linear way you might expect.
A lack of sleep is a problem for children with ADHD and their parents. New research has an uplifting message for both.
If behavioural sleep problems persist beyond infancy, there could be implications for children’s emotional and attentional development longer term.
You may have to blame your ancestors...
Lucid dreaming is showing some promise in treating nightmares. Could it help treat some mental illnesses, too?
It seems we do dream of the things we try to suppress.
There's more to sleeping in space than just nodding off.
Throughout history there have been numerous accounts of segmented sleep, from medical texts, to court records and diaries.
Eighty percent of North Americans can no longer see the Milky Way at night. But the problem with light pollution isn't just about stargazing.
Sleep is often overlooked as a treatment for brain injury, but new research could be about to change that.
Eight weeks of deadlines, debates, press releases, public appearances and handshaking. What should politicians and their teams do to stay healthy and sane?
Have you ever arrived in a hotel room after a long flight and despite being exhausted, failed to fall asleep? This is called the first-night effect and we may have understood why it occurs.
New research suggests disrupted sleep patterns could have more impact on some measures of women's performance than men's.
The relationship between insomnia and mental illness is bidirectional: about 50% of adults with insomnia have a mental health problem; up to 90% of adults with depression have sleep problems.
The European Space Agency is exploring what we can learn from animals about long-term deep sleep.