

Deep into Sleep
Yishan Xu, PhD, DBSM
Are you worried about your sleep and health? Are you bothered by lack of sleep or fatigue? Are you suffering from insomnia, sleep apnea, or other sleep disorders? Do you feel your sleep difficulties are getting in the way of being successful, happy, and motivated? Deep into Sleep podcast is here to assist you find the answers.
Dr. Yishan Xu is a licensed clinical psychologist, board-certified behavioral sleep medicine sleep specialist, and adjunct clinical faculty at Stanford School of Medicine, Sleep Division. Dr. Xu explores inspiring conversations with guests from various fields, small business owners, students, parents, entrepreneurs, doctors, mental health workers, and more. With knowledge and tips around sleep, health, business, lifestyle, and relationship, you will discover more about yourself, which leads to a healthier mindset and the life you desire.
©DeepintoSleepPodcast 2019. These materials may be downloaded for personal use only. They may not be shared, distributed, or reproduced in any form or for any reason without express permission
👀SUBSCRIBE OUR EMAIL NEWSLETTER
https://www.mindbodygarden.com/sleep
📝CHECK OUT THE SHOW NOTES
https://deepintosleep.co
✨CONNECT WITH US
https://www.instagram.com/dr.yishan
https://twitter.com/dryishan
Dr. Yishan Xu is a licensed clinical psychologist, board-certified behavioral sleep medicine sleep specialist, and adjunct clinical faculty at Stanford School of Medicine, Sleep Division. Dr. Xu explores inspiring conversations with guests from various fields, small business owners, students, parents, entrepreneurs, doctors, mental health workers, and more. With knowledge and tips around sleep, health, business, lifestyle, and relationship, you will discover more about yourself, which leads to a healthier mindset and the life you desire.
©DeepintoSleepPodcast 2019. These materials may be downloaded for personal use only. They may not be shared, distributed, or reproduced in any form or for any reason without express permission
👀SUBSCRIBE OUR EMAIL NEWSLETTER
https://www.mindbodygarden.com/sleep
📝CHECK OUT THE SHOW NOTES
https://deepintosleep.co
✨CONNECT WITH US
https://www.instagram.com/dr.yishan
https://twitter.com/dryishan
Episodes
Mentioned books

Aug 29, 2025 • 47min
Ep207 - Sleep Data Revolution: Using AI to Detect Patterns, Health Risks, and Improve Sleep Quality with Mikael Kågebäck, PhD
In this episode, Dr. Yishan explores the intersection of cutting-edge technology and sleep health, diving deep into the ways artificial intelligence is shaping the future of sleep research and care. Joining the conversation is Mikael Kågebäck, Chief Technology Officer at Sleep Cycle and a specialist in AI and machine learning. Together, they discuss how large-scale AI-powered data collection—using just the audio from your phone—can help us understand sleep patterns, pinpoint global trends, and even potentially identify early warning signs of health issues like respiratory illness and sleep apnea.Mikael Kågebäck shares fascinating insights from Sleep Cycle’s global user base, including how sleep habits vary around the world and what the pandemic taught us about sleep regularity. He also opens up about the rigorous privacy and security protocols that keep users’ data safe, and gives us a peek into the app’s innovative features, such as its real-time “cough radar” and advanced sleep staging.Whether you’re curious about the technology behind sleep trackers, the benefits (and limits) of AI in sleep medicine, or the future of personalized sleep coaching, this episode is packed with expert knowledge and intriguing possibilities. So get ready to find out how your phone could become your best ally in achieving better sleep—thanks to the power of AI!Show Notes: deepintosleep.co/episode/AIRESOURCESAre you so sleepy that you cannot focus? Are you tired of getting through the day drinking coffee? Are you worried how your poor sleep may impact your health?Checkout Dr. Yishan Xu’s Insomnia Treatment Course! Connect with Dr. YishanInstagram: @dr.yishanTwitter: @dryishanFacebook:@dr.yishanConnect with Mikael Kågebäcklinkedin.com/in/kagebackkageback.comNewsletter and Download Free Sleep Guidence E-Book:https://www.mindbodygarden.com/sleepCBT-I Courses:English: https://www.deepintosleep.co/insomniaChinese: https://www.mindbodygarden.com/shimianPodcast Links:Apple Podcast: https://podcasts.apple.com/us/podcast/deep-into-sleep/id1475295840Google Podcast: https://podcasts.google.com/search/deepintosleepStitcher: https://www.stitcher.com/show/deep-into-sleepSpotify: https://open.spotify.com/show/2Vxyyj9Cswuk91OYztzcMSiHeartRadio: https://www.iheart.com/podcast/269-deep-into-sleep-47827108/Support our Podcast: https://www.buymeacoffee.com/dryishanLeave us a Rating: https://podcasts.apple.com/us/podcast/deep-into-sleep/id1475295840If you're interested in learning more about psychological testing and the services offered at the MindBodyGarden make sure to visit their website at mindbodygarden.com/AssessmentClinic.

Jul 31, 2025 • 1h 2min
Ep206 - Magical Power of Breathing for Female Sexual Health with Nicole Fleischmann, MD
In this episode, host Dr. Yishan welcomes Dr. Nicole Fleischmann, a renowned board-certified urogynecologist and urologist, to delve into a topic that’s rarely discussed: the hidden connections between breathing, pelvic floor health, and women’s well-being.Dr. Fleischmann, author of "The Second Mouth: A Woman's Journey to Decoding a Hidden Language for a New Era in Women's Health," shares her groundbreaking perspective on how the way we breathe—specifically through our diaphragm and belly—can have a profound impact not just on relaxation and sleep, but also on pelvic health, urinary incontinence, and even sexual well-being. Together, Dr. Yishan and Dr. Fleischmann bust long-standing myths about Kegel exercises, posture, and what it really means to have a “strong” pelvic floor.They also explore why so many women live with undiagnosed pelvic floor issues, the culturally ingrained habits that might actually be harming us, and how simple but intentional breathing techniques can empower women to reconnect with their bodies and improve their quality of life.If you’re curious about better sleep, nervous system health, and what it really takes to care for your pelvic floor, this episode is packed with valuable insights and practical tips you won’t want to miss. Tune in for an eye-opening conversation that just might change the way you think about your own body.Show Notes: deepintosleep.co/episode/breathingRESOURCESAre you so sleepy that you cannot focus? Are you tired of getting through the day drinking coffee? Are you worried how your poor sleep may impact your health?Checkout Dr. Yishan Xu’s Insomnia Treatment Course! Connect with Dr. YishanInstagram: @dr.yishanTwitter: @dryishanFacebook:@dr.yishanConnect with Nicole Fleischmann, MDLinkedInWebsiteNewsletter and Download Free Sleep Guidence E-Book:https://www.mindbodygarden.com/sleepCBT-I Courses:English: https://www.deepintosleep.co/insomniaChinese: https://www.mindbodygarden.com/shimianPodcast Links:Apple Podcast: https://podcasts.apple.com/us/podcast/deep-into-sleep/id1475295840Google Podcast: https://podcasts.google.com/search/deepintosleepStitcher: https://www.stitcher.com/show/deep-into-sleepSpotify: https://open.spotify.com/show/2Vxyyj9Cswuk91OYztzcMSiHeartRadio: https://www.iheart.com/podcast/269-deep-into-sleep-47827108/Support our Podcast: https://www.buymeacoffee.com/dryishanLeave us a Rating: https://podcasts.apple.com/us/podcast/deep-into-sleep/id1475295840If you're interested in learning more about psychological testing and the services offered at the MindBodyGarden make sure to visit their website at mindbodygarden.com/AssessmentClinic.

Jun 27, 2025 • 35min
Ep205 - Nightmares and PTSD – Expert Tips for Better Sleep with Dr. Courtney Worley
Do nightmares keep you awake at night? Wondering if frequent nightmares mean you have trauma—or if they can ever truly be cured? In this powerful episode, Dr. Yishan welcomes Dr. Courtney Worley, nightmare specialist, board-certified clinical psychologist, and co-author of “The Nightmare and Sleep Disorder Toolkit.” Together, they explore what nightmares really are, why they happen (even if you don’t have PTSD), and how evidence-based treatments like imagery rehearsal therapy and lucid dreaming can help you take back control of your nights.Dr. Worley shares real-life breakthrough moments, explains the difference between nightmares and night terrors, and reveals common mistakes people make when trying to manage distressing dreams on their own. Discover actionable hope, scientific guidance, and practical resources—whether you’re struggling with trauma-related nightmares or looking for ways to simply sleep better.If nightmares are disrupting your life, you don’t have to suffer in silence. Tune in for cutting-edge expertise, self-help strategies, and the encouragement to seek help and finally find rest.Show Notes: deepintosleep.co/episode/nightmareRESOURCESAre you so sleepy that you cannot focus? Are you tired of getting through the day drinking coffee? Are you worried how your poor sleep may impact your health?Checkout Dr. Yishan Xu’s Insomnia Treatment Course! Connect with Dr. YishanInstagram: @dr.yishanTwitter: @dryishanFacebook:@dr.yishanConnect with Dr. Courtney WorleyDrCourtneyWorley.comUpwardBehavioralHealth.com@DrWorleyConsultNewsletter and Download Free Sleep Guidence E-Book:https://www.mindbodygarden.com/sleepCBT-I Courses:English: https://www.deepintosleep.co/insomniaChinese: https://www.mindbodygarden.com/shimianPodcast Links:Apple Podcast: https://podcasts.apple.com/us/podcast/deep-into-sleep/id1475295840Google Podcast: https://podcasts.google.com/search/deepintosleepStitcher: https://www.stitcher.com/show/deep-into-sleepSpotify: https://open.spotify.com/show/2Vxyyj9Cswuk91OYztzcMSiHeartRadio: https://www.iheart.com/podcast/269-deep-into-sleep-47827108/Support our Podcast: https://www.buymeacoffee.com/dryishanLeave us a Rating: https://podcasts.apple.com/us/podcast/deep-into-sleep/id1475295840If you're interested in learning more about psychological testing and the services offered at the MindBodyGarden make sure to visit their website at mindbodygarden.com/AssessmentClinic.

Jun 20, 2025 • 35min
Ep204 - Myth and Treatment options around Sleep Apnea with Christopher Allen, MD
Welcome back to the Deep Into Sleep Podcast! In this episode, we are joined by Dr. Christopher Allen—also known as Sleep Dr. Chris on social media—to dive deep into the world of obstructive sleep apnea (OSA). With over 25% of adults in America affected by OSA (and nearly a billion people worldwide!), this sleep disorder is far more common than most of us realize. Yet, many people go undiagnosed for years, and only a small percentage actually seek treatment. Tune in for more!Show Notes: deepintosleep.co/episode/OSARESOURCESAre you so sleepy that you cannot focus? Are you tired of getting through the day drinking coffee? Are you worried how your poor sleep may impact your health?Checkout Dr. Yishan Xu’s Insomnia Treatment Course! Connect with Dr. YishanInstagram: @dr.yishanTwitter: @dryishanFacebook:@dr.yishanConnect with Christopher Allen, MDInstagram: https://www.instagram.com/sleepdrchris/TikTok: https://www.tiktok.com/@sleepdrchrisLinkedIN:https://www.linkedin.com/in/sleepdrchris/Facebook: https://www.facebook.com/profile.php?id=100093550283321Newsletter and Download Free Sleep Guidence E-Book:https://www.mindbodygarden.com/sleepCBT-I Courses:English: https://www.deepintosleep.co/insomniaChinese: https://www.mindbodygarden.com/shimianPodcast Links:Apple Podcast: https://podcasts.apple.com/us/podcast/deep-into-sleep/id1475295840Google Podcast: https://podcasts.google.com/search/deepintosleepStitcher: https://www.stitcher.com/show/deep-into-sleepSpotify: https://open.spotify.com/show/2Vxyyj9Cswuk91OYztzcMSiHeartRadio: https://www.iheart.com/podcast/269-deep-into-sleep-47827108/Support our Podcast: https://www.buymeacoffee.com/dryishanLeave us a Rating: https://podcasts.apple.com/us/podcast/deep-into-sleep/id1475295840If you're interested in learning more about psychological testing and the services offered at the MindBodyGarden make sure to visit their website at mindbodygarden.com/AssessmentClinic.

Apr 11, 2025 • 57min
Ep203: The Painful Diagnostic Journey of Sleep Apnea And a New Way Through It with Douglas Krohn, MD
A topic that affects many but is often misunderstood: sleep apnea. Join us with Dr. Douglas Krohn to uncover the intricacies of obstructive sleep apnea, highlighting symptoms, risks, and the impact it has on both mental and physical health.Dr. Krohn, a seasoned primary care physician and sleep medicine expert, introduces an innovative telehealth platform, konk.com, designed to streamline the diagnostic process. By leveraging adaptive logic questionnaires, this platform offers a faster, cheaper avenue to pinpoint sleep apnea, circumventing the traditional costly sleep studies.Show Notes: deepintosleep.co/episode/sleepapneaRESOURCESAre you so sleepy that you cannot focus? Are you tired of getting through the day drinking coffee? Are you worried how your poor sleep may impact your health?Checkout Dr. Yishan Xu’s Insomnia Treatment Course! Connect with Dr. YishanInstagram: @dr.yishanTwitter: @dryishanFacebook:@dr.yishanConnect with Douglas Krohn, MDLinkedIn - https://www.linkedin.com/in/douglas-krohn-md-119533a/Newsletter and Download Free Sleep Guidence E-Book:https://www.mindbodygarden.com/sleepCBT-I Courses:English: https://www.deepintosleep.co/insomniaChinese: https://www.mindbodygarden.com/shimianPodcast Links:Apple Podcast: https://podcasts.apple.com/us/podcast/deep-into-sleep/id1475295840Google Podcast: https://podcasts.google.com/search/deepintosleepStitcher: https://www.stitcher.com/show/deep-into-sleepSpotify: https://open.spotify.com/show/2Vxyyj9Cswuk91OYztzcMSiHeartRadio: https://www.iheart.com/podcast/269-deep-into-sleep-47827108/Support our Podcast: https://www.buymeacoffee.com/dryishanLeave us a Rating: https://podcasts.apple.com/us/podcast/deep-into-sleep/id1475295840If you're interested in learning more about psychological testing and the services offered at the MindBodyGarden make sure to visit their website at mindbodygarden.com/AssessmentClinic.

Mar 20, 2025 • 46min
Ep202: The Science Behind Sleep: Debunking Myths and Embracing Healthier Sleep Habits with Stephanie Romiszewski
Welcome to Deep Into Sleep! I'm your host, Dr. Yishan, and today, we have a fascinating guest—Stephanie Romiszewski a leading expert in behavioral sleep medicine, with a background that spans psychology, Harvard Sleep Labs, and the founder of the Sleepyhead Clinic.In this episode, we’re breaking down some of the biggest sleep myths that might be messing with your rest. Are relaxation apps really helping? Do you actually need eight hours of sleep? Stephanie and I dive into these common misconceptions and share practical tips to help you sleep better.Whether you’re struggling with insomnia or just want to wake up feeling more refreshed, this conversation will give you the tools to improve your sleep. So, get comfy and let’s get started!Show Notes: deepintosleep.co/episode/sleepmythsRESOURCESAre you so sleepy that you cannot focus? Are you tired of getting through the day drinking coffee? Are you worried how your poor sleep may impact your health?Checkout Dr. Yishan Xu’s Insomnia Treatment Course! Connect with Dr. YishanInstagram: @dr.yishanTwitter: @dryishanFacebook:@dr.yishanConnect with Stephanie RomiszewskiInstagram -@stephsleepyheadhttps://www.sleepyheadclinic.co.uk/stephanie-romiszewski-sleep-expert/Newsletter and Download Free Sleep Guidence E-Book:https://www.mindbodygarden.com/sleepCBT-I Courses:English: https://www.deepintosleep.co/insomniaChinese: https://www.mindbodygarden.com/shimianPodcast Links:Apple Podcast: https://podcasts.apple.com/us/podcast/deep-into-sleep/id1475295840Google Podcast: https://podcasts.google.com/search/deepintosleepStitcher: https://www.stitcher.com/show/deep-into-sleepSpotify: https://open.spotify.com/show/2Vxyyj9Cswuk91OYztzcMSiHeartRadio: https://www.iheart.com/podcast/269-deep-into-sleep-47827108/Support our Podcast: https://www.buymeacoffee.com/dryishanLeave us a Rating: https://podcasts.apple.com/us/podcast/deep-into-sleep/id1475295840If you're interested in learning more about psychological testing and the services offered at the MindBodyGarden make sure to visit their website at mindbodygarden.com/AssessmentClinic.

Feb 27, 2025 • 48min
Ep201: Choosing the Right Mattress: Tips for Improved Sleep Quality and Comfort with Derek Hales
In this episode of Deep Into Sleep Podcast, we talked about the essentials of selecting the right mattress with expert Derek Hales. From understanding the appropriate firmness to considering materials and addressing individual sleep needs, Derek shares insights from testing hundreds of mattresses. Whether you're a side sleeper needing medium firmness or a stomach sleeper requiring additional support, there's a mattress out there for you. We also explore the rise of smart beds and the importance of balancing comfort with technology. Take control of your sleep quality by understanding what you truly need in a mattress. Show Notes: deepintosleep.co/episode/mattressRESOURCESAre you so sleepy that you cannot focus? Are you tired of getting through the day drinking coffee? Are you worried how your poor sleep may impact your health?Checkout Dr. Yishan Xu’s Insomnia Treatment Course! Connect with Dr. YishanInstagram: @dr.yishanTwitter: @dryishanFacebook:@dr.yishanConnect with Derek Haleshttps://naplab.com/https://www.youtube.com/@NapLabReviewsNewsletter and Download Free Sleep Guidence E-Book:https://www.mindbodygarden.com/sleepCBT-I Courses:English: https://www.deepintosleep.co/insomniaChinese: https://www.mindbodygarden.com/shimianPodcast Links:Apple Podcast: https://podcasts.apple.com/us/podcast/deep-into-sleep/id1475295840Google Podcast: https://podcasts.google.com/search/deepintosleepStitcher: https://www.stitcher.com/show/deep-into-sleepSpotify: https://open.spotify.com/show/2Vxyyj9Cswuk91OYztzcMSiHeartRadio: https://www.iheart.com/podcast/269-deep-into-sleep-47827108/Support our Podcast: https://www.buymeacoffee.com/dryishanLeave us a Rating: https://podcasts.apple.com/us/podcast/deep-into-sleep/id1475295840If you're interested in learning more about psychological testing and the services offered at the MindBodyGarden make sure to visit their website at mindbodygarden.com/AssessmentClinic.

Feb 15, 2025 • 10min
Ep200: Celebrating 200 Episodes: Exploring Sleep Medicine and Personal Growth plus Practical Sleep Tips for Frequent Travelers
Welcome to this special 200th episode of the Deep Into Sleep podcast! Join Dr. Yishan as she takes you on a journey through her evolving understanding of sleep medicine since the podcast's inception in 2019. From her early days at Stanford's Sleep Medicine Center, she's gained profound insights into myriad sleep disorders—over 90 types, with insomnia being just one of them. Through interviews with esteemed sleep experts, Dr. Yishan has grown not only in her knowledge but also in her career, with her mental health clinic expanding exponentially. She also shares her exciting plans to launch a sleep center in the San Francisco Bay Area. Tune in as Dr. Yishan reveals her top travel tips for better sleep on long flights, including the benefits of eye masks, earplugs, supportive neck pillows, and cozy socks. Embrace the new year with hopeful perspectives on improving sleep quality. Thank you for being part of this incredible journey, and enjoy the episode!Show Notes: deepintosleep.co/episode/travelsleeptipsRESOURCESAre you so sleepy that you cannot focus? Are you tired of getting through the day drinking coffee? Are you worried how your poor sleep may impact your health?Checkout Dr. Yishan Xu’s Insomnia Treatment Course! Connect with Dr. YishanInstagram: @dr.yishanTwitter: @dryishanFacebook:@dr.yishanNewsletter and Download Free Sleep Guidence E-Book:https://www.mindbodygarden.com/sleepCBT-I Courses:English: https://www.deepintosleep.co/insomniaChinese: https://www.mindbodygarden.com/shimianPodcast Links:Apple Podcast: https://podcasts.apple.com/us/podcast/deep-into-sleep/id1475295840Google Podcast: https://podcasts.google.com/search/deepintosleepStitcher: https://www.stitcher.com/show/deep-into-sleepSpotify: https://open.spotify.com/show/2Vxyyj9Cswuk91OYztzcMSiHeartRadio: https://www.iheart.com/podcast/269-deep-into-sleep-47827108/Support our Podcast: https://www.buymeacoffee.com/dryishanLeave us a Rating: https://podcasts.apple.com/us/podcast/deep-into-sleep/id1475295840If you're interested in learning more about psychological testing and the services offered at the MindBodyGarden make sure to visit their website at mindbodygarden.com/AssessmentClinic.

Nov 28, 2024 • 42min
Ep199: Beyond Size: Realities and Misconceptions of Penile Enlargement with Dr. Joel Pash
In today's episode, we shift from our usual discussions on sleep to explore the fascinating world of cosmetic medicine with our guest, Dr. Joel Pash. As a seasoned anesthesiologist turned specialist in men's penile enlargement. He sheds light on the cultural perceptions and psychological impacts of this aesthetic procedure, drawing parallels to widely accepted cosmetic enhancements for women. We'll explore patient motivations, safety considerations, and address common misconceptions about size and satisfaction. Enjoy the episode!Show Notes: deepintosleep.co/episode/penileenlargementRESOURCESAre you so sleepy that you cannot focus? Are you tired of getting through the day drinking coffee? Are you worried how your poor sleep may impact your health?Checkout Dr. Yishan Xu’s Insomnia Treatment Course! Connect with Dr. YishanInstagram: @dr.yishanTwitter: @dryishanFacebook:@dr.yishanConnect with Dr. Joel PashUpsizeMatters.comTwitterInstagramTikTokYouTubeNewsletter and Download Free Sleep Guidence E-Book:https://www.mindbodygarden.com/sleepCBT-I Courses:English: https://www.deepintosleep.co/insomniaChinese: https://www.mindbodygarden.com/shimianPodcast Links:Apple Podcast: https://podcasts.apple.com/us/podcast/deep-into-sleep/id1475295840Google Podcast: https://podcasts.google.com/search/deepintosleepStitcher: https://www.stitcher.com/show/deep-into-sleepSpotify: https://open.spotify.com/show/2Vxyyj9Cswuk91OYztzcMSiHeartRadio: https://www.iheart.com/podcast/269-deep-into-sleep-47827108/Support our Podcast: https://www.buymeacoffee.com/dryishanLeave us a Rating: https://podcasts.apple.com/us/podcast/deep-into-sleep/id1475295840If you're interested in learning more about psychological testing and the services offered at the MindBodyGarden make sure to visit their website at mindbodygarden.com/AssessmentClinic.

Nov 15, 2024 • 46min
Ep198: Circadian Rhythm and Sleep: Discover the Role of Light Therapy Glasses with Alexander Dimitrov
Alexander Dimitrov, founder of Ayo, discusses the powerful effects of personalized light therapy on sleep and mood. He shares insights on how circadian glasses can combat jet lag and winter blues by aligning your body clock with daily life. The conversation touches on the science behind light therapy, its applications for sleep disorders, and its transformative impact on performance. With practical tips for managing light exposure, Dimitrov emphasizes the importance of tailored solutions for enhancing well-being.