3 ms·

Hmm... 70% agreement in an unpublished study funded by the company vs a device that is itself maybe 90% agreement with lab PSG. Better than I expected, but I w

Hmm... 70% agreement in an unpublished study funded by the company vs a device that is itself maybe 90% agreement with lab PSG. Better than I expected, but I wonder if it is just due to many sleepers having quite predictable stages. "Figure 4 shows the worst result of the cohort (55 of 55), with an accuracy of 49.9%. Note that this user self-reported having a sleep disorder."

sradman 6y ago
> I wonder if it is just due to many sleepers having quite predictable stages That is what I wondered. The Garmin reports my deep sleep in ways that don't match predictable patterns and do approximate times of random events like being woken by animal noises or sirens. Its much better than I expected and I can see it getting much better with the incorporation of additional sensor/external data.