rem sleep
REM sleep — the period during the night when you have dreams — is critical for emotional processing, memory consolidation and more.
Dreams can be like movies based on your memories from long ago — or last week.
Experts weigh in on whether taking the sleep supplement can trigger bizarre dreams or nightmares.
"I cannot imagine that there is a shred of scientific data to support this wild speculation."
WHAT'S HAPPENING
A lot happens while you're dreaming.
Pretty cool discovery in the world of dreaming.
New sleep study confirms that we see things similarly to when we're awake.