• Ep208 - What Sleep Taught Me This Year | Night Terrors, Nightmares, Sleep Apnea & Gratitude
    Jan 1 2026
    🎙️ Deep Into Sleep — Year-End Reflection Episode

    As 2025 comes to an end, this special episode of Deep Into Sleep is a reflection on what a year of conversations has taught me about sleep, the brain, and the people who trust us with their nights.

    Rather than focusing on a single sleep disorder, this episode brings together four meaningful conversations that shaped how I now think about sleep across the lifespan—from childhood to adulthood, from behavior to biology.

    In this episode, we explore:

    🧠 Children’s Sleep Terrors

    Sleep terrors are often misunderstood and deeply frightening for parents.

    In this episode, I share key insights from a conversation with pediatric sleep expert Dr. Sarah Honaker.

    🌙 Nightmares Are Treatable

    Nightmares are common—but nightmare disorder is not something people have to live with forever. In my conversation with Dr. Courtney Worley, we discussed some myths around nightmares.

    One key takeaway: improving sleep often starts during the day, not at night.

    😴 Snoring Is Never “Just Snoring”

    Several conversations this year reinforced one critical message: snoring is not benign. In my discussion with sleep physician Dr. Christopher Allen, we covered why sleep apnea has been described as a “slow killer”—not dramatic, but silent. We also discuss treatment options, including CPAP, and other options, emphasizing the importance of individualized care.

    🧬 Precision, Not Guesswork: The Future of Sleep Care

    In an upcoming episode with Dr. Kendall Stewart, we explore sleep through the lens of genetics and neurochemistry. When we stop guessing and start tailoring treatment to the individual, sleep care becomes more effective—and more humane.

    🙏 Gratitude & Reflection

    This year also brought an unexpected moment of gratitude: being named “Sleep Podcast of the Year” by Dr. Chris Winter on his podcast Sleep Unplugged.

    I don’t take that recognition lightly. It belongs to every guest who shared their expertise, every listener who trusted this space, and every patient who reminds me why sleep education matters.

    If this episode helps you understand your sleep—or your child’s sleep—just a little better, then it has done its job.

    Thank you for going deep into sleep with me.

    1. 00:00 – Opening: Why a Year-End Reflection on Sleep
    2. 01:15 – Gratitude & “Sleep Podcast of the Year” Moment
    3. 02:20 – What Parents Misunderstand About Children’s Sleep Terrors
    4. 05:00 – Nightmares: Common, Treatable, and Not a Life Sentence
    5. 07:45 – Snoring Is Not Benign: Sleep Apnea and Brain Health
    6. 11:00 – Precision, Not Guesswork: Biology + Behavior in Sleep Care
    7. 13:20 – Final Reflections & Thank You

    Show Notes: deepintosleep.co/episode/breathing

    RESOURCES

    Are 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. Yishan

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    10 mins
  • Ep207 - Sleep Data Revolution: Using AI to Detect Patterns, Health Risks, and Improve Sleep Quality with Mikael Kågebäck, PhD
    Aug 29 2025

    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/AI

    RESOURCES

    Are 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. Yishan

    • Instagram: @dr.yishan
    • Twitter: @dryishan
    • Facebook:@dr.yishan

    Connect with Mikael Kågebäck

    • linkedin.com/in/kageback
    • kageback.com

    Newsletter and Download Free Sleep Guidence E-Book:

    • https://www.mindbodygarden.com/sleep

    CBT-I Courses:

    • English: https://www.deepintosleep.co/insomnia
    • Chinese: https://www.mindbodygarden.com/shimian

    Podcast Links:

    • Apple Podcast: https://podcasts.apple.com/us/podcast/deep-into-sleep/id1475295840
    • Google Podcast: https://podcasts.google.com/search/deepintosleep
    • Stitcher: https://www.stitcher.com/show/deep-into-sleep
    • Spotify: https://open.spotify.com/show/2Vxyyj9Cswuk91OYztzcMS
    • iHeartRadio:...
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    47 mins
  • Ep206 - Magical Power of Breathing for Female Sexual Health with Nicole Fleischmann, MD
    Jul 31 2025

    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/breathing

    RESOURCES

    Are 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. Yishan

    • Instagram: @dr.yishan
    • Twitter: @dryishan
    • Facebook:@dr.yishan

    Connect with Nicole Fleischmann, MD

    • LinkedIn
    • Website

    Newsletter and Download Free Sleep Guidence E-Book:

    • https://www.mindbodygarden.com/sleep

    CBT-I Courses:

    • English: https://www.deepintosleep.co/insomnia
    • Chinese: https://www.mindbodygarden.com/shimian

    Podcast Links:

    • Apple Podcast: https://podcasts.apple.com/us/podcast/deep-into-sleep/id1475295840
    • Google Podcast: https://podcasts.google.com/search/deepintosleep
    • Stitcher: https://www.stitcher.com/show/deep-into-sleep
    • Spotify: https://open.spotify.com/show/2Vxyyj9Cswuk91OYztzcMS
    • iHeartRadio:
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    1 hr and 2 mins
  • Ep205 - Nightmares and PTSD – Expert Tips for Better Sleep with Dr. Courtney Worley
    Jun 27 2025

    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/nightmare

    RESOURCES

    Are 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. Yishan

    • Instagram: @dr.yishan
    • Twitter: @dryishan
    • Facebook:@dr.yishan

    Connect with Dr. Courtney Worley

    • DrCourtneyWorley.com
    • UpwardBehavioralHealth.com
    • @DrWorleyConsult

    Newsletter and Download Free Sleep Guidence E-Book:

    • https://www.mindbodygarden.com/sleep

    CBT-I Courses:

    • English: https://www.deepintosleep.co/insomnia
    • Chinese: https://www.mindbodygarden.com/shimian

    Podcast Links:

    • Apple Podcast: https://podcasts.apple.com/us/podcast/deep-into-sleep/id1475295840
    • Google Podcast: https://podcasts.google.com/search/deepintosleep
    • Stitcher: https://www.stitcher.com/show/deep-into-sleep
    • Spotify: https://open.spotify.com/show/2Vxyyj9Cswuk91OYztzcMS
    • iHeartRadio: https://www.iheart.com/podcast/269-deep-into-sleep-47827108/
    • Support our Podcast:
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    35 mins
  • Ep204 - Myth and Treatment options around Sleep Apnea with Christopher Allen, MD
    Jun 20 2025
    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...
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    35 mins
  • Ep203: The Painful Diagnostic Journey of Sleep Apnea And a New Way Through It with Douglas Krohn, MD
    Apr 11 2025

    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/sleepapnea

    RESOURCES

    Are 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. Yishan

    • Instagram: @dr.yishan
    • Twitter: @dryishan
    • Facebook:@dr.yishan

    Connect with Douglas Krohn, MD

    • LinkedIn - https://www.linkedin.com/in/douglas-krohn-md-119533a/

    Newsletter and Download Free Sleep Guidence E-Book:

    • https://www.mindbodygarden.com/sleep

    CBT-I Courses:

    • English: https://www.deepintosleep.co/insomnia
    • Chinese: https://www.mindbodygarden.com/shimian

    Podcast Links:

    • Apple Podcast: https://podcasts.apple.com/us/podcast/deep-into-sleep/id1475295840
    • Google Podcast: https://podcasts.google.com/search/deepintosleep
    • Stitcher: https://www.stitcher.com/show/deep-into-sleep
    • Spotify: https://open.spotify.com/show/2Vxyyj9Cswuk91OYztzcMS
    • iHeartRadio: https://www.iheart.com/podcast/269-deep-into-sleep-47827108/
    • Support our Podcast: https://www.buymeacoffee.com/dryishan
    • Leave us a Rating:...
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    57 mins
  • Ep202: The Science Behind Sleep: Debunking Myths and Embracing Healthier Sleep Habits with Stephanie Romiszewski
    Mar 20 2025

    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/sleepmyths

    RESOURCES

    Are 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. Yishan

    • Instagram: @dr.yishan
    • Twitter: @dryishan
    • Facebook:@dr.yishan

    Connect with Stephanie Romiszewski

    • Instagram -@stephsleepyhead
    • https://www.sleepyheadclinic.co.uk/stephanie-romiszewski-sleep-expert/

    Newsletter and Download Free Sleep Guidence E-Book:

    • https://www.mindbodygarden.com/sleep

    CBT-I Courses:

    • English: https://www.deepintosleep.co/insomnia
    • Chinese: https://www.mindbodygarden.com/shimian

    Podcast Links:

    • Apple Podcast: https://podcasts.apple.com/us/podcast/deep-into-sleep/id1475295840
    • Google Podcast: https://podcasts.google.com/search/deepintosleep
    • Stitcher: https://www.stitcher.com/show/deep-into-sleep
    • Spotify: https://open.spotify.com/show/2Vxyyj9Cswuk91OYztzcMS
    • iHeartRadio: https://www.iheart.com/podcast/269-deep-into-sleep-47827108/
    • Support our Podcast: https://www.buymeacoffee.com/dryishan
    • Leave us a Rating:...
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    46 mins
  • Ep201: Choosing the Right Mattress: Tips for Improved Sleep Quality and Comfort with Derek Hales
    Feb 27 2025

    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/mattress

    RESOURCES

    Are 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. Yishan

    • Instagram: @dr.yishan
    • Twitter: @dryishan
    • Facebook:@dr.yishan

    Connect with Derek Hales

    • https://naplab.com/
    • https://www.youtube.com/@NapLabReviews

    Newsletter and Download Free Sleep Guidence E-Book:

    • https://www.mindbodygarden.com/sleep

    CBT-I Courses:

    • English: https://www.deepintosleep.co/insomnia
    • Chinese: https://www.mindbodygarden.com/shimian

    Podcast Links:

    • Apple Podcast: https://podcasts.apple.com/us/podcast/deep-into-sleep/id1475295840
    • Google Podcast: https://podcasts.google.com/search/deepintosleep
    • Stitcher: https://www.stitcher.com/show/deep-into-sleep
    • Spotify: https://open.spotify.com/show/2Vxyyj9Cswuk91OYztzcMS
    • iHeartRadio: https://www.iheart.com/podcast/269-deep-into-sleep-47827108/
    • Support our Podcast: https://www.buymeacoffee.com/dryishan
    • Leave us a Rating: https://podcasts.apple.com/us/podcast/deep-into-sleep/id1475295840

    If you're interested in learning more about psychological testing and the services offered at the MindBodyGarden make sure to visit their website at

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    48 mins