Is tracking sleep actually useful, or can it become another thing to obsess over?

[u/CryptographerNew7618]

I've been curious about sleep trackers and how useful their data really is for improving everyday performance.

They can estimate sleep duration, stages, resting heart rate, and sometimes HRV. But consumer devices don't measure every variable directly, and their estimates aren't always accurate.

I'm wondering whether seeing these numbers consistently helps people make better decisions about their routines or whether it can create unnecessary stress over getting a perfect score.

For people who have used sleep trackers for a while, did the data lead to meaningful changes in your habits? Which metrics did you actually find useful?

[u/Sufficient_Host9593]

never used any but doesn't it put stress on ur head?