Sleep Tracking Accuracy

Comments discuss the accuracy, reliability, and usefulness of sleep tracking features in wearables like Apple Watch, Fitbit, Oura ring, and apps like Sleep Cycle, with recommendations for alternatives and skepticism about wrist-based measurements.

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Keywords

apolloneuro.com TL withings.com accuracy.html livescience.com EUR sleep.cs DR REM WakeMakes sleep tracking sleeping wrist tracker inaccurate band ring wake data

Sample Comments

SirensOfTitan • May 10, 2017 • View on HN

The Sleep Cycle app does a pretty good job at sleep analysis and gentle waking and you don't have to wear anything.

matthewking • Sep 13, 2017 • View on HN

Sleep tracking would be one of my primary use cases, how accurate is it? is it useful?

pizza • Jun 29, 2017 • View on HN

This is related https://www.livescience.com/42710-fitness-trackers-sleep-mon...

vuciv1 • Jan 2, 2021 • View on HN

Ah, I don't see sleep tracking. Gimme sleep tracking and I'm in!

kerng • May 16, 2019 • View on HN

The stats imply that it's very inaccurate in tracking sleep phases - you probably know better yourself the day after.

dariosalvi78 • Dec 29, 2023 • View on HN

Sleep cycles are very hard to measure reliably, basically no wrist worn device should be trusted for that.

fionabunny • Nov 7, 2011 • View on HN

How does the sleep tracking actually work? How can I verify the measurements?

cozzyd • May 29, 2021 • View on HN

If you want to track your sleep that doesn't work so well

nunodonato • Sep 8, 2020 • View on HN

I'm working on a desktop app, so sleep tracking might not be that useful ;)

road_to_freedom • Feb 22, 2025 • View on HN

Which sleep tracker? Watches aren't accurate.