The podcast episodes discuss the importance of REM sleep in various aspects of cognitive and emotional processing, including its roles in dream generation, emotional regulation, and the management of conditions like PTSD and depression.

For example, episode GUEST SERIES | Dr. Matt Walker: The Science of Dreams, Nightmares & Lucid Dreaming extensively explores the characteristics and significance of REM sleep in relation to dreaming, while episode GUEST SERIES | Dr. Matt Walker: Improve Sleep to Boost Mood & Emotional Regulation highlights the vital connection between REM sleep and emotional well-being.

The podcast episode Dreams: What Could They Mean? also discusses the longstanding belief that dreaming primarily occurs during REM sleep, and how this understanding has been challenged by recent research.