Picture this: you wake up from a really great dream, but you suddenly can’t remember any of the details. This is actually quite normal—almost 95 percent of all dreams are forgotten shortly after waking! Now picture this scenario: you wake up in a cold sweat with vivid memories of someone chasing you. You’ve experienced a nightmare, and it’s very common to remember every terrifying detail when you wake up from one.
A nightmare usually happens in the later hours of REM sleep, which is why you usually awaken and have a clear recollection of what happened in your dream. Read on to learn a little bit more about who experiences nightmares, what causes them, and how to deal with them.