Your Pre-Sleep Blood Sugar Check Is a Sleep Decision, Not Just a Safety Check

SHOW NOTES:

You already do this. You check your blood sugar before bed, glance at your CGM, maybe set a temp basal. You've been doing it for as long as you've had T1D. Here's the reframe: you've been doing it as a safety check. "Am I okay to go to sleep?" This episode argues it's also a sleep decision -- and that shift changes what you're actually optimizing for.

Active insulin at midnight is a sleep variable. A correction dose from 9pm is still tailing off at 1am. That tail can create glucose variability that pulls you out of deep sleep without triggering an alarm -- a partial arousal that costs you sleep quality without you knowing it happened. The more stable your blood sugar heading into sleep, the fewer overnight alarms, the better your sleep architecture, and the better your insulin sensitivity the next morning.

Welcome to June. Welcome to Week 5 of the While You Were Sleeping Challenge. This is where we start doing something about it.

In this episode:

How pre-sleep blood sugar affects sleep quality, not just overnight safety
What active insulin at bedtime does to your 1am and 2am sleep stages
The 30-minutes-before-bed check and why timing makes a difference
How pre-sleep glucose stability connects directly to tomorrow morning's insulin sensitivity
Starting the feedback loop running in the right direction tonight

This Week's Challenge: Check your blood sugar 30 minutes before bed -- not right when you're about to sleep. Note the number and any active insulin on board. Do this three nights and see what the mornings look like.

Helpful resources and newsletter: https://yourbestt1dyear.com

Connect with Neil: TikTok: https://tiktok.com/@the.betes Instagram: https://instagram.com/thebetes Facebook: https://facebook.com/neilgreathouse LinkedIn: https://linkedin.com/in/neil-greathouse-a607b912 Website: https://yourbestt1dyear.com

Books on Amazon: Type 1 Diabetes – One Day at a Time: https://a.co/d/6UHooWJ Type 1 Diabetes – True Stories: https://a.co/d/dfIlyI1

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