Colour-changing patterns in snoozing octopuses are characteristic of two alternating sleep states.
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Articles on REM sleep
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Why is the coronavirus affecting my sleep and dreams?
Dreams that are more vivid, more frequent and more striking… Lockdown seems to trouble our nights as well as our days, and there's reason to believe that's not just a figment of our imagination.
During times of stress and anxiety we either dream more or remember our dreams more often, as a way of coping with challenging circumstances and new information.
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.
Top contributors
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Postdoctoral Researcher, Harvard University
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Postdoctoral Fellow, Paediatric Sleep, Monash University
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Director, Appleton Institute, CQUniversity Australia
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Director, Adelaide Institute for Sleep Health, Professor, College of Medicine and Public Health, Flinders University, Flinders University
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Professor of Sleep Medicine and NHMRC Practitioner Fellow, Woolcock Institute of Medical Research, University of Sydney
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Senior Lecturer in Science Education, Sussex School of Education and Social Work, University of Sussex
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Senior Lecturer in the Turner Institute for brain and Mental Health, School of Psychological Sciences, Monash University
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Post-doctoral research fellow, School of Health Sciences, RMIT University
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Lecturer in Vision Sciences, Glasgow Caledonian University
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Assistant Professor of Psychology, Birmingham-Southern College
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Associate lecturer, University of Essex
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Associate Professor - Clinical Psychology, University of the Sunshine Coast
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Professor of Psychology, Goldsmiths, University of London
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Lecturer in Psychology, University of East London
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Professor of Sleep Science, Northumbria University, Newcastle
