Shattered: legacy of a reality TV experiment in extreme sleep deprivation

The prize was £100,000. Purported risks included depression and hallucinations. Channel 4’s show probably couldn’t be made today – but almost 15 years later do the contestants regret taking part?

Poor sleep makes people pile on the pounds, study finds

Disrupted sleep alters metabolism and boosts body’s ability to store fat, data shows

‘The devil’s aspirin’: why do so many celebrities blame Ambien?

Elon Musk, Roseanne Barr, Tiger Woods and others have all claimed the sedative was at fault for their strange behavior

Feeling lonely? Why a good night’s sleep might be the ultimate cure

New studies have shown that sleep deprivation can make people feel lonely – and social isolation can disrupt sleep. It is vital to break the vicious cycle

For a good night’s sleep, ditch the sexism

If it’s your job alone to see the kids through the night, or keep the money coming in, you feel you can’t put a foot wrong

Upsurge in sleeping problems due to UK’s longest heatwave in 40 years

People left tired, irritable and less productive at work after nights of poor shuteye

Nightshifts disrupt rhythm between brain and gut, study shows

Blood tests on participants show profound impact work pattern has on hormones

My new plan to fight insomnia: give up on the idea of sleeping

Thanks to the heatwave, sleep has become an impossibility. But I now realise that all my battles with insomnia are in vain

When coffee isn’t enough: startups aim to bring back nap time – for a fee

Growing number of business around the world are offering spaces for people to pay to take a snooze during the day

Bring back nap time: we’d all be happier

I refuse to give up my daytime sleep just because I’m a grownup. Dreams are what my lunch break is made of