Around a third of the population have trouble sleeping, including difficulties maintaining sleep throughout the night.

A new study from Michigan State University found that caffeine can't compensate for lost sleep

Teenagers can sometimes struggle to get out of bed in the morning – but ensuring they get enough sleep could be vital for health in later life.

Cardiff University experts are researching ways to use sleep to reduce emotion around bad memories

Night 'owls' may be twice as likely as morning 'larks' to underperform at work and to run a heightened risk of early retirement due to disability, finds research published online in the journal Occupational & Environmental Medicine.

There are some curious cultural ideas around sleep, namely that there’s something virtuous or impressive about not getting very much of it. “Burnout” is often shorthand for success: if you’re successful it follows that you’re also pretty busy, in which case you’re less likely to get enough sleep. Margaret Thatcher famously boasted that she only needed to sleep four hours a night, as has Donald Trump — though whether that bolsters or damages the prestige associated with sleepless nights probably depends on your politics.

Happiness might seem in short supply these days as the COVID-19 pandemic stretches on: “fewer faces in bigger spaces,” smaller bubbles, less socializing and last call at 10 p.m. However, that early cutoff time at the bar just might do everyone some good. A new study on sleep deprivation by University of B.C. researcher and health psychologist Nancy Sin shows that if you don’t get enough sleep, not only are the lows lower, the highs are also lower as well.

Prolonged sleep deprivation can lead to severe health problems in humans and other animals. But why is sleep so vital to our health? A UCLA-led team of scientists has made a major advance in answering this question and has shown for the first time that a dramatic change in the purpose of sleep occurs at the age of about 2-and-a-half.

Using polysomnography, scientists found that when couples sleep together their REM sleep is less disrupted. They also tend to synchronize sleep cycles.

Lockdowns haven’t just curbed coronavirus transmission — they’ve also helped people get more sleep. Two studies, both published June 10 in Current Biology, report that people began sleeping more and more regularly every night after countries imposed stay-at-home orders to slow the spread of the coronavirus. But that sleep may not have been of the best quality, one of those studies finds.

Self‐reported sleep patterns and quality amongst adolescents: cross‐sectional and prospective associations with anxiety and depression. A mere 30 minutes extra sleep a day can make all the difference to a teenager’s lifelong mental health and wellbeing. A new international study of almost 5000 adolescents found those who generally slept 30 minutes less per night reported feeling anxious or depressed compared to other groups.

Inside a series of tubes in a bright, warm room at Harvard Medical School, hundreds of fruit flies are staying up late. It has been days since any of them have slept: The constant vibrations that shake their homes preclude rest, cling as they might to the caps of the tubes for respite. Not too far away in their own tubes live other sleepless flies, animated with the calm persistence of those consigned to eternal day. A genetic tweak to certain neurons in their brains keeps them awake for as long as they live.

A lot of factors feed into how kids' preferred sleep times affect achievement.

A new study from Boston University is the first to illustrate that the brain’s cerebrospinal fluid pulses during sleep, and that these motions are closely tied with brain wave activity and blood flow. It may confirm the hypothesis that CSF flow and slow-wave activity both help flush toxic, memory-impairing proteins from the brain.

In what should come as a surprise to no one, it turns out just making your smartphone's screen kind of yellow won't magically stop it from keeping you

How did you sleep last night? If the answer is “badly” followed by an uninvited pang of anxiety, look no further for an explanation than a study published this month in Nature Human Behaviour.

FitBit data is shining a light on just how much we lose when we don't get enough shut-eye.

A study of 11 sleeping brains sheds some light on the mysterious link between sleep problems and Alzheimer's disease. The flow of cerebrospinal fluid through the brain appears to be the key.

Researchers at Northwestern University show, for the first time, how to trigger the brain’s unique ability to solve problems during sleep.

What it’s like living with a chronic circadian rhythm problem.