@evanatwhoop
Anywhere I can find my daily HRV rather than weekly or monthly. This is Garmin for last night and I know I had a restless night heat and bug bites bothering me. It would be great to see when I get the huge spikes if I can see what time it happened. It makes no sense to me that I spiked for one day at an average of 160, that means it went high and stayed high or was extremely high at times so average out to 160.
Garmin shows I had a high HRV in the middle of the night but I know I woke up around that time.
Hey there @AlanGooner - good question. We don’t show your HRV plotted “throughout the night” like you’ve shown here and there’s a specific reason for that – WHOOP calculates it during your deepest sleep each night, when your body is in its most stable state. This approach ensures a precise, resting-state baseline that reflects your true recovery status, rather than being influenced by momentary fluctuations.
One personal recommendation I have here would be to view your WHOOP Sleep data from that night, and seeing if high stress or wake times correlate to moments where you were feeling restless.
Regarding your ongoing concerns about this experience, I’ve been chatting with our Data Science team and they would love to take a deeper look at your HRV + Sleep logs on the backend in order to see if there is any additional personalized insight we can offer. Would you please let us know if you would be comfortable with this by giving us permission to view that data?
@evanatwhoop
I have already done this and there are no spikes that I can see. Looks like normal sleep, maybe a slightly higher BPM than normal but that week I was doing a lot of cycling (50 to 100 miles a day). I believe that date or the previous day I cycled 100 miles.
One of the dates appears to be July 13th. When I look at the website I see not sleep but on the app it’s there.
Normal day is like this
As for anything you can do to help out I would appreciate so yes please look at the data. I do not believe the spokes are actual as shown by other devices. As much as you say it can how, I can’t see how I can got from 20 to 160 in one night and twice in a month.
Alan
This also looks suspicious
My data seems all over the place and coincides with the days I had issues..
And this day I got a 98% recovery
Thanks, @AlanGooner. We’re taking a closer look now 
One last thing. If you still insist that this is a normal event you need to find a way to handle this. What ever caused the sudden jump in HRV, Bad night sleep, Alcohol, irregular Heart Beat, fever, night sweats or device issues etc it should be flagged some how so as not to count in the Average HRV.
I am fine with the spike if you really believe it to be real. It could suggest an underlying issue. If it happens again I will pay closer attention to what it might have been the reason. I never really paid much attention to HRV because mine always runs pretty low, but to jump 750% higher in one night seems excessive.
So please consider outlier results positive or negative should be drop from the Average calculation. I would assume most people would be fine with dropping these results. My results may be unusual case, but I can imagine someone going from 40 to 120 over night would also cause average issues that will affect recovery.
Alan
@evanatwhoop
Sorry one more thing. You only measure once during the night 
This is a really bad idea surely, and how do you know when my deepest sleep is over an 8 hour window. Unless you calculate during the mornings sleep processing. Surely to be considered accurate you should test at least 5 minute intervals. What if the time you decide is my deepest sleep I was having a vivid dream or a nightmare. Aren’t you then capturing at an inappropriate time.
Alan
1 Like
Oh my goodness 
Such nonsense! That explains now why my HRV is so poor on Whoop (mostly). I always thought it measures throughout the night and builds an average. But apparently this is not the case. This leads me to the conclusion that other metrics are also suspicious. This could explain my other poor values that are different from my sports watch (which do make more sense to me and feel right).
A real bummer
1 Like
Thinking the same myself. My HRV has been a lot lower than Garmin but was at least steady until the spikes. But now I just wonder what else is taking short cuts to give less than satisfactory results. I tried the UltraHuman ring but sent that back for the same reasons, was not monitoring 24/7 just at certain points. Whilst this community has been great it has been an eye opener to all the problems that I assume probably existed with other versions but because of no community people were blissfully unaware. I am just really dissatisfied with my experience, before getting, I was lead to believe that whoop was the gold standard. Not seeing it myself 
1 Like
Agreed. I got Whoop because it was advertised as a performance tool by many elite athletes. Now I begin to become more and more dissatisfied with it. Like you wrote I thought it’s the gold standard. I wanted to optimize my long distance triathlon training with it but now?.
Hi Alan,
I’m Torey, and I lead the Data Science team here at WHOOP. I wanted to reach out personally to thank you for sharing your concerns and to apologize for the frustration these HRV spikes have caused in your Recovery scores.
You are absolutely right — extreme outliers like this should not have such a strong influence on your Recovery calculation. We also know that extremely high HRV readings that are atypical for a member are often not a sign of better recovery, and it’s a current limitation of the algorithm that these events can both give you an overly green Recovery score in the moment and then throw off your averages for weeks afterward. I’ll be taking this feedback directly to my team, and we’re looking closely at how we can better filter and handle these readings in the Recovery calculation.
I also took a closer look at your data from the dates you mentioned. That night, your HRV readings were indeed quite elevated. We examined the underlying beat-to-beat intervals across the night, and they showed unusually high variability throughout the entire sleep period. I’m honestly a bit surprised your other devices reported significantly lower values in comparison.
Just to clarify our method — WHOOP doesn’t use a single HRV measurement for the night. (The explanation of calculating it exclusively during SWS in the blog post is a bit outdated and I’m working with Evan to ensure that it’s updated to accurately reflect how the algorithm works.) Instead, we calculate HRV in overlapping 5-minute windows (stepping forward every 30 seconds) throughout your entire sleep. We remove periods of wake, then take a weighted average of the remaining windows. The weights are higher for intervals that occur during likely slow-wave sleep as well as in intervals that occur later in the night, as HRV can change by sleep stage, and later periods tend to better reflect your overnight recovery. This method is designed to capture a stable and representative HRV value for Recovery, though in rare cases like this, unusually high variability can still impact the score more than we’d like.
I appreciate you bringing this to our attention — feedback like yours helps us improve both the science and the experience for all members. While I can’t retroactively delete the spikes, I can assure you that addressing these outlier effects is something we are actively working on and giving a high degree of attention.
Best regards,
Torey
3 Likes
Hello Torey,
Thank you for taking the time to analyze this. If that is what you think my HRV was then so be it but as I stated and you seem to have noted as well, outliers like this should not affect the average because it will skew results in a huge positive way day one and then extremely negative until the high spikes are eventually dropped. It’s still skewing my results now a month later.
Looking back at Oura it now seems to have simply not recorded HRV on those days so maybe their Algorithm just drops the outliers.
Garmin on the other hand did also give me a higher than normal HRV for that day just not as high as Whoop and it certainly didn’t give a poor recovery for a few weeks.
July 13th High
July 14th Back to normal
Now Garmin does generally give me a higher HRV at average of 28 where as Whoop gives me an average of 20. I have heard others think whoop scores lower. But either way my HRV is for sure unusual. It is quite low for the training I do on a daily basis. I ride yearly 8k to 9k miles and I am on my bike daily for minimum of an hour. I do not take a day off, I do a recovery ride where I take things easy and enjoy the scenery. I have been doing this for many years. I am also 64 years old.
What I will say is the from July 4th to July 20th I did ride 50+ miles every day and a couple of 100’s in there. So I was pushing my limits and maybe a one day of high HRV was to be expected.
Back to the HRV calculation I think a lot of people will be pleased that it’s not done at one time as stated or at least what I thought was stated in Evan’s response.
Finally what you are measuring is important if true, just do not include in averages. It could be a stressful nights sleep, vivid dreams, heat issues (Unusually hot in New England this summer), some sort of heart beat irregularity.
Thank you for taking the time to respond and listening to my concerns.
Alan
PS: Make cycling as important as steps
@torey22
Another area that is a bit of a concern even without the spikes. Since I run low HRV normal movement of a few points can affect my recovery a lot. Yesterday I was 20 and my average is 24 but I got a great recovery 77% but today I moved to 18 and my recovery dropped to 59% just because of 2 points. Please note my true avg is around 20..
Using a percentage affects lower HRV people more than others.
20 avg down 4 points to 16 is a 20% drop and I get flag as poor recovery.
Someone’s average that’s around 60 avg and drops 4 points to 56 is around 6% and probably not an issue.
The higher the HRV avg is the less effect a 4 point drop affects the recovery.
Surely you should find my range and stick with this rather than a percentage?
Alan
1 Like
Hello @torey22
Today I got another spike in HRV. Not as extreme as before but still almost 3 times higher than my normal value. Consequently I got a 98% recovery up from 35%. Quite a jump. I did check Garmin and also saw an increase similar but Garmin does don’t give me an almost 100% recovery. They have me at 55% moderate recovery.
But what my concern is tomorrow I am likely to drop to a poor red recovery when I drop to my normal range.
Any news on how you plan to handle outlier readings so as not to overly affect recovery one way or the other.
Alan
1 Like
sorry for my laughter 
I thought your problem was solved. No hard feelings. It just made me laugh
1 Like
No worries because it is funny. I hope they are reading and address this soon.
It’s the outlier results instead of using the normal range that seems to be the issue. A 98% recovery because of one day of high HRV shouldn’t skew the the recovery percentage so much.
Looking forward to tomorrows red recovery
1 Like
@evanatwhoop @torey22
Same issues as Alan i am new to Whoop as of July after 4 years on Oura. I didnt always love their product but they were fast to respond from CS. I first messaged about my HRV spikes on 8/11. It’s happened 2 more times and my data is a mess. I’m 40 something days in LET ME OFF THIS TRAIN! Please just refund Me. My wife’s (family plan whoop just arrived today and we will be returning it)
Like his my HRV is naturally low my REAL range is 30-46 (I know this from years of tracking) YES I wear the band tight enough and in the right spot. Have reset, repaired etc
1 Like
NO attempt to resolve my issues since 8/11 and this is the reply. As I said before Oura had some issues but actually customer service is NOT one of them. I’m make sure to let other know how little concern they have once you are “in the community”
2 Likes
@AlanGooner this is unreal! They can spend millions on ads during every Pro Cycling event but can’t deliver their most basic services 
2 Likes
