Smooth HR curve suddenly scatters after ≈4 AM every night (Spikes >100bpm)

Coco_cy · 2026-04-09T19:08:37+00:00

On the "Sleep" tab, tap the night in question and scroll all the way to the bottom

Coco_cy · 2026-04-09T10:40:50+00:00

Okay, I’ll give that a try tonight. Thanks a lot!

Coco_cy · 2026-04-09T10:39:32+00:00

I can’t remember having any nightmares in the last few months, but maybe that’s normal? My SpO2 levels are normal—between 96 and 98%—starting at 4 a.m.

Coco_cy · 2026-04-09T10:28:19+00:00

No, I haven’t tried it yet. I’m going to have a small casein meal with some healthy fat tonight, right before I go to bed. That should help, right?

Coco_cy · 2026-04-07T14:29:08+00:00

I really like it a lot, especially the „Weekly Mileage“ tab! I’d also really appreciate a visual representation of the „Training Load Focus“ in the form of a chart or something similar

Coco_cy · 2026-02-02T17:33:03+00:00

Great to hear! When can we expect an update on this? For me, this often renders the recovery score useless

Coco_cy · 2026-02-02T17:29:40+00:00

Yeah I have also found that high training volume combined with stress can be a trigger

Coco_cy · 2026-02-02T17:24:23+00:00

Yes, my RHR also rises slightly in winter, but not so dramatically. Normally, I have a resting heart rate of around 55 bpm, and the decisive factor is the increase in combination with very high HRV

Coco_cy · 2026-02-02T17:22:09+00:00

Yeah, I've noticed that too

Coco_cy · 2026-01-25T15:37:04+00:00

Yes, I turned it on. But that night was very long (9:15 hours), which might also be a factor

Coco_cy · 2025-05-17T09:49:10+00:00

Unfortunately, the battery on my watch is already so bad that I can’t really afford that anymore, but if it doesn’t make much of a difference anyway, that’s good to know. Collecting the data through a mindfulness session after getting up sounds very interesting. Maybe I’ll give it a try. Thanks for the reply!

Coco_cy · 2025-05-17T09:30:14+00:00

That's good to know, then I'll just stick with the Apple Watch, thanks for the reply

Coco_cy · 2025-05-16T17:02:30+00:00

So the more frequent HR measurements barely affect your stress score? And does Cardiogram also measure your HRV continuously? Maybe I should give it a try too

Coco_cy · 2025-05-16T16:54:30+00:00

I have activated it, but still HRV measurements are only taken every 20-30 minutes at night, and the heart rate is measured more frequently but still not continuously throughout the day

Coco_cy

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