This transcript was prepared by a transcription service. This version may not be in its final form and may be updated. Charlotte Gartenberg: Do you find it hard to fall asleep? If you do, you're not ...

Brain waves can be manipulated while in rapid eye movement (REM) sleep, a sleep stage associated with memory and cognition, a new study from the University of Surrey finds. Novel technology, using ...

If you've been looking for a sign to work on your sleep hygiene, this is it. A new study suggests that a particular wave of sleep, called slow-wave sleep, plays an integral role in staving off ...