Apple’s sleep charts can feel like a nightly report card, and “core sleep” often ends up in the spotlight. Yet the science behind wearables suggests that fixating on that one stage is a distraction ...

Sleep is critical to peak health. Some of the adverse health effects attributed to too little sleep include obesity, diabetes, hypertension, heart disease, stroke, depression, impaired immune function ...

Bar chart showing the 20 countries involved in the study, and the average duration of sleep for participants in each country. Your optimal amount of sleep may depend on where you live, new University ...

We asked the experts how your sleep changes as you age and why quality rest is a priority at 65+ ...

Experts recommend adults get a minimum of seven hours of sleep. Over one-third of Americans aren't sleeping enough, per The United Health Foundation. Hawaii residents reported getting the least sleep ...

If there’s one thing to get right in life, it’s sleep. And it turns out most Australians are failing to count the right amount of sheep each night. Everyone’s lucky number should be seven, as that’s ...

Most of us struggle to think well after a poor night’s sleep — feeling foggy and failing to perform at our usual standard at school, university or work. You may notice that you’re not concentrating as ...