What Type 1 Diabetes Actually Does to Your Sleep Architecture | Episode 200

T1D Sleep Challenge: Four Weeks In, What We've Learned

SHOW NOTES: Four weeks ago, Neil asked you to do one thing: write down how many hours you slept. That was it. Just a number. And now here we are. This is the halftime checkpoint of the While You Were Sleeping Challenge. Neil does what any good coach does at halftime -- pulls everyone in, takes a breath, and goes over what we actually know. Because the first four weeks covered a lot: recognition, the 21% number, the dawn phenomenon, the sleep-blood sugar feedback loop, bedtime consistency, sleep architecture differences in T1D, and CGM alarm fatigue. And the goal today is to actually sit with what changed before we move into solutions. May was all problem and mechanism. June is different. June is where we build. We're in Week 5 of the While You Were Sleeping Challenge. If you're just finding this, jump in right here. You're not behind. In this episode: * A full recap of Weeks 1 through 4 and everything established so far * Why problem-naming has to come before solution-building * What the second half of the challenge covers (cortisol, Fear of Hypoglycemia, CGM as a proactive tool, pre-sleep routines) * How to look at your own four weeks of data before June begins * What "paying attention" for four weeks actually produced, even if the tracking wasn't perfect This Week's Challenge: What's one thing you noticed in the last four weeks? Not a conclusion. Not a solved problem. One thing you noticed. Write it in one sentence. Helpful resources and newsletter: https://yourbestt1dyear.com [https://yourbestt1dyear.com] Connect with Neil: TikTok: https://tiktok.com/@the.betes [https://tiktok.com/@the.betes] Instagram: https://instagram.com/thebetes [https://instagram.com/thebetes] Facebook: https://facebook.com/neilgreathouse [https://facebook.com/neilgreathouse] LinkedIn: https://linkedin.com/in/neil-greathouse-a607b912 [https://linkedin.com/in/neil-greathouse-a607b912] Website: https://yourbestt1dyear.com [https://yourbestt1dyear.com] Books on Amazon: Type 1 Diabetes – One Day at a Time: https://a.co/d/6UHooWJ [https://a.co/d/6UHooWJ] Type 1 Diabetes – True Stories: https://a.co/d/dfIlyI1 [https://a.co/d/dfIlyI1]

How to Adjust CGM Alarm Thresholds for Better Sleep with Type 1 Diabetes

SHOW NOTES: When did you last actually look at your CGM alarm threshold settings? Not to silence an alarm. Not to check a number. To actually look at the thresholds -- the settings, the specific values, when they were last changed. If your answer is "when I first set up the device," this episode is for you. Neil walks through what CGM alarm thresholds are, why they're not permanent features of having T1D, and why the settings you're running right now may be calibrated for a different version of your management than the one you have today. Your diabetes has changed. Your time in range has changed. Your thresholds probably haven't. This is a practical episode -- no heavy science, just a straightforward conversation about settings you can actually look at and, when appropriate, adjust. We're in Week 4 of the While You Were Sleeping Challenge. This is the actionable follow-up to Monday's alarm fatigue episode. In this episode: * What CGM alarm thresholds are and how most people originally set them * Why outdated thresholds create unnecessary overnight wake-ups even when management has improved * The difference between thresholds optimized for daytime control vs. overnight sleep * Quiet hours and do-not-disturb settings most CGM users don't know exist * Why this conversation is worth having with your care team This Week's Challenge: Open your CGM app. Find the alarm threshold settings. Look at the numbers. Do they still match where your management actually is? Helpful resources and newsletter: https://yourbestt1dyear.com [https://yourbestt1dyear.com] Connect with Neil: TikTok: https://tiktok.com/@the.betes [https://tiktok.com/@the.betes] Instagram: https://instagram.com/thebetes [https://instagram.com/thebetes] Facebook: https://facebook.com/neilgreathouse [https://facebook.com/neilgreathouse] LinkedIn: https://linkedin.com/in/neil-greathouse-a607b912 [https://linkedin.com/in/neil-greathouse-a607b912] Website: https://yourbestt1dyear.com [https://yourbestt1dyear.com] Books on Amazon: Type 1 Diabetes – One Day at a Time: https://a.co/d/6UHooWJ [https://a.co/d/6UHooWJ] Type 1 Diabetes – True Stories: https://a.co/d/dfIlyI1 [https://a.co/d/dfIlyI1]

CGM Alarm Fatigue in Type 1 Diabetes: How Your Alerts Are Wrecking Your Sleep

SHOW NOTES: How many times did your CGM alarm last night? If you have to guess -- or if you're honestly not sure because your arm is doing the silence-and-go-back-to-sleep thing on autopilot -- that's alarm fatigue. And it's a documented, peer-reviewed phenomenon that's costing you sleep in ways that quietly compound every single night. This episode is about the complicated relationship T1D people have with CGM alarms. They're lifesaving. They're also, at times, genuinely maddening. There's a real, measurable difference between alarms that protect you and alarms that interrupt your sleep architecture without adding any safety benefit. Neil talks about how alarm fatigue develops, what it costs your sleep stages, and why the answer isn't to turn everything off -- it's calibration. We're in Week 4 of the While You Were Sleeping Challenge. In this episode: * What alarm fatigue is and how it develops in T1D people over time * How sub-threshold wake-ups disrupt sleep architecture without a full wake-up * The boy-who-cried-wolf problem in CGM management -- and why the wolf is still real * Why calibration (not silence) is the right response * The peer-reviewed paper with a title that's definitely just a research paper title This Week's Challenge: Count how many times your CGM alarmed last night. Don't do anything about it yet. Just get the number. Helpful resources and newsletter: https://yourbestt1dyear.com [https://yourbestt1dyear.com] Connect with Neil: TikTok: https://tiktok.com/@the.betes [https://tiktok.com/@the.betes] Instagram: https://instagram.com/thebetes [https://instagram.com/thebetes] Facebook: https://facebook.com/neilgreathouse [https://facebook.com/neilgreathouse] LinkedIn: https://linkedin.com/in/neil-greathouse-a607b912 [https://linkedin.com/in/neil-greathouse-a607b912] Website: https://yourbestt1dyear.com [https://yourbestt1dyear.com] Books on Amazon: Type 1 Diabetes – One Day at a Time: https://a.co/d/6UHooWJ [https://a.co/d/6UHooWJ] Type 1 Diabetes – True Stories: https://a.co/d/dfIlyI1 [https://a.co/d/dfIlyI1]

What Type 1 Diabetes Actually Does to Your Sleep Architecture | Episode 200

SHOW NOTES: 200 episodes. Neil didn't plan on this. He definitely didn't plan on spending episode 200 explaining what your liver does at 3am without your permission. And yet here we are. This is the episode that contains the most important thing Neil has said in this entire challenge. Most T1D content talks about sleep in two ways: the safety angle (set your alarms right) or the wellness angle (get enough rest). Neither goes far enough. What the research actually shows is that T1D adults have fundamentally different sleep architecture than adults without T1D -- measurably less slow-wave sleep, higher overnight hormone levels, and a higher arousal index that keeps them closer to the surface all night. You're not bad at sleeping. You've been sleeping with a condition that literally changes how sleep works in your body. And nobody told you. This is Week 4 of the While You Were Sleeping Challenge. 200 episodes in. This one matters. In this episode: * The documented differences in T1D sleep architecture vs. non-T1D adults * What slow-wave sleep is and why T1D people get measurably less of it * What "arousal index" means and why it explains waking up tired after 7 hours * Why endocrinologists and sleep doctors don't talk to each other (but should) * Why episode 200 was the right moment to say this out loud This Week's Challenge: Tell one person about this challenge. Someone with T1D, or who loves someone with T1D. One ripple. Helpful resources and newsletter: https://yourbestt1dyear.com [https://yourbestt1dyear.com] Connect with Neil: TikTok: https://tiktok.com/@the.betes [https://tiktok.com/@the.betes] Instagram: https://instagram.com/thebetes [https://instagram.com/thebetes] Facebook: https://facebook.com/neilgreathouse [https://facebook.com/neilgreathouse] LinkedIn: https://linkedin.com/in/neil-greathouse-a607b912 [https://linkedin.com/in/neil-greathouse-a607b912] Website: https://yourbestt1dyear.com [https://yourbestt1dyear.com] Books on Amazon: Type 1 Diabetes – One Day at a Time: https://a.co/d/6UHooWJ [https://a.co/d/6UHooWJ] Type 1 Diabetes – True Stories: https://a.co/d/dfIlyI1 [https://a.co/d/dfIlyI1]

Bedtime Consistency and T1D: Why Timing Beats Total Hours for Blood Sugar Control

SHOW NOTES: You've been told to get eight hours. Here's what the research actually found. A 2023 study of 76 adults with type 1 diabetes tracked both CGM and sleep data for one week. The finding: sleep duration alone was not independently associated with time in range. What was? Bedtime consistency. Every extra hour of variability in bedtime was associated with roughly 10% less time in range. Your CGM noticed. It was taking notes. This episode reframes the sleep conversation for T1D: it's not just about how much you sleep. It's about when. Your body doesn't know it's Saturday. Your cortisol doesn't know it's Saturday. Only your social calendar knows it's Saturday -- and your social calendar is not in charge of your A1C. We're in Week 3 of the While You Were Sleeping Challenge. In this episode: * The 2023 T1D sleep study and what it actually measured * Why six people who each got 7 hours got six different results * What bedtime consistency means practically -- and why it matters more than total hours * Why weekend sleep timing is where this breaks down for most people * The 60-minute window and why it works This Week's Challenge: Try to go to bed within a 60-minute window of the same time, three nights this week. Not all seven. Just three. Helpful resources and newsletter: https://yourbestt1dyear.com [https://yourbestt1dyear.com] Connect with Neil: TikTok: https://tiktok.com/@the.betes [https://tiktok.com/@the.betes] Instagram: https://instagram.com/thebetes [https://instagram.com/thebetes] Facebook: https://facebook.com/neilgreathouse [https://facebook.com/neilgreathouse] LinkedIn: https://linkedin.com/in/neil-greathouse-a607b912 [https://linkedin.com/in/neil-greathouse-a607b912] Website: https://yourbestt1dyear.com [https://yourbestt1dyear.com] Books on Amazon: Type 1 Diabetes – One Day at a Time: https://a.co/d/6UHooWJ [https://a.co/d/6UHooWJ] Type 1 Diabetes – True Stories: https://a.co/d/dfIlyI1 [https://a.co/d/dfIlyI1]