Sign up for CNN’s Sleep, But Better newsletter series. Our seven-part guide has helpful hints to achieve better sleep. Baland Jalal lay in bed terrified ...

When we go into rapid eye movement or REM sleep most of the muscles in our body are paralyzed so that we cannot move. The most common explanation you will hear from sleep scientists for this strange ...

A man with long-standing exploding head syndrome and sleep paralysis reports fewer and less intense episodes after low-dose ...

The investigative minds at How to Survive explore sleep paralysis hallucinations, causes, and how to cope safely.

If you've ever had the eerie sensation there's a presence in the room when you were sure you were alone, you may be reluctant to admit it. Perhaps it was a profound experience that you are happy to ...