How to Improve Your Sleep

A science journalist spent months researching sleep. Here’s what he found.

At a shiny new lab in Japan, an international team of scientists is trying to figure out what puts us under.

In short, nothing good—and just one bad night can trigger a cascade of scary side effects.

Our floodlit society has made sleep deprivation a lifestyle. But we know more than ever about how we rest—and how it keeps us healthy.

Our own bodies’ clocks are far better for telling us when to wake up.

The ideal sleep environment takes four of your five senses into account.

Should you drink more coffee? Should you take melatonin? Can you train yourself to need less sleep?

The science of sleeplessness.

It depends on how well you want your brain to work.

We are living through an epidemic of sleeplessness, but the medical establishment has largely ignored the problem. Can a radical new therapy help you get some sleep?