Measuring sleeping heart rate

My Polar m430 just measures the length and quality of sleep.

i've successfully used a bluetooth-compatible chest-strap that paired to my charging smartphone while I slept.

the data was logged (i'm not sure if it was exportable to something like Excel, but I think it should be. this feature is dependent on the app)

the chest-strap has a rechargeable battery that I charged during the daytime.

the lowest HRs recorded were typically 5-7 beats below my HR upon waking, if i recall correctly.

i don't monitor this data nowadays, but the insight I gained was valuable.

oura ring

Just have somebody watch you and take your pulse while you sleep.

Haha not creepy at all

The x45 series of Garmin Forerunner's provide a running window of the last 4 hours of heart rate measurement, in which the Peak and Minimum values for that 4-hr period are highlighted, as in the following image:

https://ibb.co/mzMNmVZ

The Garmin Forerunner 245 may very well be the "Gold Standard" for optical wrist-based measurement (maybe better than the larger Forerunner 945 in that regard).

hr measurement wrote:

The Garmin Forerunner 245 may very well be the "Gold Standard" for optical wrist-based measurement (maybe better than the larger Forerunner 945 in that regard).

Containing the same state-of-the -art optical sensor, they both work fine for low intensity activity (at rest, while sleeping, walking, etc.), but the smaller 245 may be less prone to error under high intensity activity (e.g., on the track), since the conditions of the occasional 'stray light' error are less probable with the smaller watch on smaller wrists.

pulse man wrote:

I was wanting to measure my pulse at its lowest point (obviously in deep sleep).

I refer to that four-hour window of heart rate plot on my 945 daily (as well as its "Body Battery" plot), to see what my lowest sleep HR value was, for insight into recovery.

hr measurement wrote:

The x45 series of Garmin Forerunner's provide a running window of the last 4 hours of heart rate measurement, in which the Peak and Minimum values for that 4-hr period are highlighted, as in the following image:

https://ibb.co/mzMNmVZ

The Garmin Forerunner 245 may very well be the "Gold Standard" for optical wrist-based measurement (maybe better than the larger Forerunner 945 in that regard).

Thanks, so I've never used the GF 245 (I could get one from a local store) but do I look at the HR function first thing in the morning and it will show the last 4 hours?

Basically any modern wearable device with heart-rate monitor does this. How old are you?

When I first tried this I was surprised to find that my heart rate didn't go as low as it does when relaxed duriing the day.

My low during the day after reading a book on the couch for 1-2 hours (as reported by my watch) is usually 35-38. I've confirmed this with manual pulse readings many times. The lowest I've measured manually is 31. The lowest I've seen in the previous 4 hour window is 29, which I've seen a few times after waking up. I agree with the 6-7 beats lower than a typical daily low.

Note: while my HR range is unusually wide (max HR is also higher than most for my age, as is threshold HR), that doesn't seem to have any particular benefit to my athletic performance. I'm in pretty good shape for my age, but nothing special.