Sleep paralysis is common, and rarely harmful, though it can be scary. Here's what you should know about the causes, risk ...

When your alarm goes off after nine hours of sleep and you still feel like you could sleep for several more, your body might be trying to tell you something important. While we often hear about the ...

Routinely getting less than 7 to 9 hours of sleep each night can increase your risk for heart disease, along with other ...

While quality sleep is usually associated with 8 hours in bed, some people still wake up feeling more exhausted than before.

A new study reveals that fragmented sleep causes cellular damage to the brain's blood vessels, providing further evidence to suggest that sleep disruption predisposes the brain to dementia. "We found ...