Every night, Sleeptracker-AI® analyzes millions of fully anonymized sleep recordings.

This Halloween, our data showed something striking: a clear spike in resting heart rate across sleepers in the U.S.

The cause is clear: Behavioral changes that activate the sympathetic “fight-or-flight” response, which our sensors capture at population scale:

– Increased sugar intake
– Higher alcohol consumption
– Later bedtimes
– Nervous-system stimulation

The Fall Effect: Beyond a single holiday, we observe a steady, seasonal rise in RHR. Colder weather, shorter days, and routine shifts subtly stress the cardiovascular system throughout the fall.

Sleep data reveals how we live. Sleep is health, and often, it’s a great story.

Do your own research with our Koa Sleep-Science agent. Leverage our dataset of 250 million nights of sleep to explore trends in recovery, activity, or lifestyle shifts—especially during the holiday season.

—> Access the Koa Agent:

https://koa.fullpower.ai/

Make your very own sleep-science prompts!

https://www.fullpower.com/

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