But for most of us, that kind of sleep schedule would be disastrous. We'd be groggy, unfocused, and reaching for sugary ...

It is the rare person who can get by on just four and a half hours of sleep—but those individuals exist. Not only do they need relatively little slumber, they also tend to score higher than ...

If you find yourself asking, “How much sleep do I need?” you’re not alone. Between work, family, late-night scrolling and early morning alarms, getting enough rest can feel impossible.

Chronic stress can reduce the quality of deep sleep, that stage when our body really repairs itself. This is why women often need more sleep to compensate for this deficit and achieve a full recovery.

The quantity of sleep you need is dictated by your biology ... is like stopping a washing machine mid-spin cycle—why would anyone do that?” This story is part of Popular Science’s Ask ...

Eventually, your body will demand that you start to repay the debt. We don't really adapt to getting less sleep than we need. We may get used to a schedule that keeps us from getting enough sleep ...

are genetically wired to need only four to six hours of sleep a night. These outliers suggest that quality, not quantity, is what matters. If scientists could figure out what these people do ...

Contacting your doctor about sleep issues (and having your filled-in sleep journal handy when you do) can help get your nighttime rest back on a healthy, refreshing track. A sleep journal can ...

That’s why it ... The National Sleep Foundation provides recommendations for certain age groups based on the needs of each population. For example, babies and children often need more sleep ...