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Live performance of Sleep album

Health

Start-up uses biometrics to tailor music for good night’s sleep

Trouble kipping? Boston-based Sync Project is collecting heart-rate data from music lovers to see if it can tweak tracks for better relaxation

Two people asleep in the back of a car, possibly dreaming

Humans

We dream loads more than we thought – and forget most of it

A person out late at night

Health

Mutation in clock gene explains why some night owls stay up late

Remington Mallett

Humans

I can control a computer with my mind – from inside a dream

Remy Mallett

Health

How you can control what happens in your dreams

exam

Health

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

Woman reading a phone and a tablet under a blanket

Health

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

A seal on its back underwater, close to the seafloor

Environment

Watch some of the most endangered seals caught napping underwater

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

Life

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

Woman sleeping in meadow

Humans

Why rest and relaxation are such a serious business

Hard work and rest sound like opposites, but it’s much more complex, says Mary Halton, after visiting a new exhibition and exploring a new book

Humans

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

Humans

Fast asleep? Your unconscious is still listening

Health

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

Mind

Smart wristband tracks vital signs to keep truckers moving