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Health

False memory helps us think but we can't do it when we're tired

Our brains generalise information, linking and associating related concepts. The process can help us improvise in exams – but only if we’ve had enough sleep

News

Woman reading a phone and a tablet under a blanket

Technology

If your smartphone is keeping you up at night, give it a rest

Comment

A seal on its back underwater, close to the seafloor

Life

Watch some of the most endangered seals caught napping underwater

News

Two students in a library, one with head on the desk

Life

Napping before an exam is as good for your memory as cramming

News

Woman sleeping in meadow

Humans

Why rest and relaxation are such a serious business

Culture

Artwork of a group of people sleeping on each other's shoulders

Humans

Tired all the time? Why fatigue isn't just about sleep

Features

watch

Humans

Fast asleep? Your unconscious is still listening

Features

3 people napping outside on the grass

Health

Don't lose sleep over the claim that long naps may make you ill

Comment

truck

Technology

Smart wristband tracks vital signs to keep truckers moving

News

sleep deprivation

Health

A bad night’s sleep messes with your brain’s memory connections

Tests on people’s brains after a night of disruption suggest that sleep is important for clearing space for forming new memories

News

Health

Herpes infections are worse if contracted at the end of the day

News

Life

Baby monkeys smile in their sleep - more so than human babies

News

Life

Found: brain switches that wake flies up and send them to sleep

News

Life

First evidence birds nap in flight without dropping out of sky

News