Missing HRV Status on my watch

HRV status is generated while you're sleeping, I believe. Page 23 of the manual says, "Your watch analyzes your wrist heart rate readings while you are sleeping to determine your heart rate variability (HRV). Training, physical activity, sleep, nutrition, and healthy habits all impact your heart rate variability. HRV values can vary widely based on gender, age, and fitness level. A balanced HRV status may indicate positive signs of health such as good training and recovery balance, greater cardiovascular fitness, and resilience to stress. An unbalanced or poor status may be a sign of fatigue, greater recovery needs, or increased stress. For best results, you should wear the watch while sleeping. The watch requires three weeks of consistent sleep data to display your heart rate variability status."

Yes, I wear it 24/7 (so including sleeps) for more than a month now.

Hello all!  Please see the FAQ below that address this topic:

HRV Status on Compatible Garmin Devices

Additionally, if you have been wearing your watch to bed for at least 21 days and still do not have an HRV status, please answer the following:

1. May we, if necessary, have permission to email you?
2. May we, if necessary, have permission to view/access your Garmin Connect account?
3. In what country do you live?

Yes I have been wearing it for 4 weeks now.

You do have my authorization for 1 and 2. The account is the one listed on the post.

I live in France.

jfoulquier You do not have a Forerunner 255s registered to the Garmin Connect account which shares the same email address with your forums profile.  The only watches that I see registered are FR 310XT, 610, 910. 920XT, and 945. None of these watches support HRV Status.

jfoulquier please check the email address in your Garmin Connect account where you have the FR 255s registered and post to this thread using that email address when logging in to the forums.

Yes Garmin-Kevin, I wrote in my first topic that it was about my son's profile. The authorization from his profile follows.

Hi Garmin-Kevin

As the owner of the 255s and directly concerned about the issue presented here, I therefore authorize you to access my Garmin Account and email me if necessary. I live in France.

Thank you tfoulquier. When I look in the Reports section of your account, I see some nights where sleep was not recorded.  Any break within the necessary 3-week timeframe will affect the creation of an HRV Status.

This is the bug Garmin-Kevin. I can assure you that I've been wearing it all along since june the 12th. If I check on Sleeps datas, I can see that the latest day without sleep score is the day before today. I'm 100% sure I've been wearing my watch that night.