Dr. Matthew Walker on Huberman Lab: How to Fix Your Sleep

How REM and deep non-REM cycles serve distinct repair roles every night; Walker covers caffeine cutoffs, alcohol effects on REM, and melatonin dose reality.

Andrew HubermanhostMatthew Walkerguest

Jun 12, 202535mWatch on YouTube ↗

EPISODE INFO

Released: June 12, 2025
Duration: 35m
Channel: Huberman Lab
Watch on YouTube: ▶ Open ↗

EPISODE DESCRIPTION

In this Huberman Lab Essentials episode my guest is Dr. Matt Walker, PhD, Professor of Neuroscience and Psychology at the University of California, Berkeley and host of The Matt Walker Podcast, which focuses on the science and impact of sleep. We explore the importance of sleep and how its nightly structure, including REM and non-REM stages, helps rejuvenate the mind and body. We also discuss how caffeine, alcohol, cannabis and melatonin supplements affect your ability to fall asleep and overall sleep quality. Additionally, Matt highlights the benefits of naps and shares a variety of unconventional tips to promote healthier, more restorative sleep. Episode show notes: https://go.hubermanlab.com/Dl8HreY Huberman Lab Essentials are short episodes focused on essential science and protocol takeaways from past full-length Huberman Lab episodes. Watch the full-length episode: https://youtu.be/gbQFSMayJxk?si=wvPSlCQQdZxffsk0 Watch more Huberman Lab Essentials episodes: https://youtube.com/playlist?list=PLPNW_gerXa4OGNy1yE-W9IX-tPu-tJa7S *Follow Huberman Lab* Instagram: https://www.instagram.com/hubermanlab Threads: https://www.threads.net/@hubermanlab X: https://twitter.com/hubermanlab Facebook: https://www.facebook.com/hubermanlab TikTok: https://www.tiktok.com/@hubermanlab LinkedIn: https://www.linkedin.com/in/andrew-huberman Website: https://www.hubermanlab.com Newsletter: https://www.hubermanlab.com/newsletter *Dr. Matt Walker* Website: https://www.sleepdiplomat.com The Matt Walker Podcast: https://themattwalkerpodcast.buzzsprout.com "Why We Sleep": https://amzlink.to/az0k3XjUOQ8ZI Academic profile: https://psychology.berkeley.edu/people/matthew-p-walker X: https://twitter.com/sleepdiplomat Instagram: https://www.instagram.com/drmattwalker LinkedIn: https://www.linkedin.com/in/sleepdiplomat MasterClass: https://www.masterclass.com/classes/matthew-walker-teaches-the-science-of-better-sleep *Timestamps* 00:00:00 Matt Walker, Sleep 00:00:25 Rapid Eye Movement (REM) & Non-REM Sleep, Paralysis 00:02:05 Sleep Cycles, Nighttime Sleep Structure, Hormones 00:07:08 Nighttime Waking Up, Fragmented Sleep 00:09:20 Sunlight Exposure & Sleep 00:10:43 Caffeine & Sleep Effects, Tool: Timing Caffeine 00:13:42 Alcohol & Sleep Effects 00:16:23 Cannabis; THC, Alcohol, REM Sleep & Dreams 00:18:38 Melatonin, Supplementation?, Dose 00:24:44 Prescription Sleep Aids, Cognitive Behavioral Therapy (CBT) & Sleep 00:27:02 Naps, Benefits, Insomnia, Tool: Nap Length 00:30:34 Sleep Tips, Tools: “Do Nothing”; Winddown Routine; Worry Journal; Clocks 00:34:45 Acknowledgments Disclaimer & Disclosures: https://www.hubermanlab.com/disclaimer

SPEAKERS

Andrew Huberman
host
Matthew Walker
guest

EPISODE SUMMARY

In this episode of Huberman Lab, featuring Andrew Huberman and Matthew Walker, Dr. Matthew Walker on Huberman Lab: How to Fix Your Sleep explores master Your Sleep: Science-Backed Habits, Hormones, and Common Mistakes Revealed This episode with Dr. Matt Walker distills the core science of sleep and translates it into practical tools to improve mental and physical health. They explain the architecture of a night’s sleep, the distinct roles of non-REM and REM, and why both phases are evolutionarily non‑negotiable. The discussion covers how light, caffeine, alcohol, THC, melatonin, naps, and behavioral routines influence sleep quantity and quality. Walker emphasizes low-risk, behavioral strategies—timing of light, caffeine, naps, and wind-down routines—over quick fixes like supplements or chronic sleep medications.

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