Lying awake at 3am? Perhaps you should try biphasic sleeping

Poor sleep and insomnia can make you less effective, but it’s still not necessary to stay in bed for eight hours

The Nightmare review – self-consciously creepy glimpse at sleep paralysis

Interviews with sleep paralysis sufferers makes a disturbingly persuasive case for the origins of nightmare tropes in art and literature

Sleep study finds ‘hotspot’ regions where Americans don’t get enough rest

Researchers found 84 regions where there are higher levels of people getting insufficient sleep and 45 ‘coldspots’ where there are lower levels

How much can you really learn while you’re asleep?

If the apps are to be believed, you can learn to find love or brush up your golf skills while sleeping. Neuroscientist Jordan Gaines Lewis explains the facts behind the fiction

Weight gain in teens may be linked to late nights, says study

US research reveals teenagers’ body mass index increasing with every hour they stay up during the school week

Sleep – the eight-hour live-broadcast lullaby for a frenetic world

Max Richter’s eight-hour composition has broken records, and it turns out to be as eye-opening as it is soporific

Narcolepsy cases linked to flu vaccine subject to new compensation dispute

Lawyers dispute claims over Pandemrix swine flu vaccine which was withdrawn after doctors noticed rise in narcolepsy cases

Why should teenagers be allowed to sleep in for as long as it suits them?

Apparently, it suits their circadian rhythms to start school later. Of course it does – I would rather wake up at lunchtime, too. But that’s not how the world works

Keep the dream alive: why waking up later is good for us all

Dr Paul Kelley says children are losing 10 hours of sleep a week – and it’s all down to a clash between school start times and teenage body clocks

A stroll by the sea will help you sleep longer, study finds

Research for the National Trust also revealed coastal walkers reflected more about their loved ones and their childhood