How Bedroom Temperature and Blue Light Affect Blood Sugar in Type 1 Diabetes

SHOW NOTES:

Neil wants to be upfront: this episode is going to sound like wellness content delivered by someone standing in a field in linen pants. He knows. He can't control how it sounds. What he can tell you is that there's actual research behind all of it, it specifically applies to T1D glucose management, and he read most of it at midnight on his phone in bed with the screen at full brightness.

Your sleep environment -- specifically temperature, light, and screen exposure -- directly affects the hormones that regulate both sleep and glucose. For T1D people, those hormones matter more because there's no backup system to compensate when they go sideways. Blue light at 10pm tells your brain it's daytime, suppresses melatonin, and raises cortisol. A warm room keeps your core temperature elevated, making it harder to drop into deep sleep. Both of these things are doing quiet work against your blood sugar while you're trying to rest.

We're in Week 5 of the While You Were Sleeping Challenge.

In this episode:

How blue light from screens suppresses melatonin and triggers cortisol at 10pm
Why your phone screen registers as "daytime" to your brain's sleep-wake system
Core body temperature and its role in reaching deep sleep stages
The research-backed temperature range for better sleep quality
One practical environmental change to make tonight that doesn't require buying anything

This Week's Challenge: Know your bedroom temperature. Tonight, put your phone face down one hour before bed. Not in another room -- just face down. See what happens.

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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