Around 3% REM sleep

[Flynn]

I (f 31) have almost no recorded REM sleep on my Sense 2 Fitbit.

last night I had an 8 h and 33 minute sleep, which is great. On this it recorded 3% REM sleep.. so that’s only 18 minutes.

I’ve switched fitbits with my partner for a night and he has an Inspire 3. Our results stayed the same so it’s not an error in my Fitbit.

I am not overweight and never snore. Also I can always remember that I’ve had a dream. I’ve read that you can dream in light sleep as well. But I think most dreams are from the REM stage.

is it possible that Fitbit is just missing my REM because my heart and respiratory stats are just a bit different from the regular? I really hope it’s just a flaw..

thank you in advance for a reply 

[Flynn]

Edit: this is without drinking alcohol/meds. I drink only coffee in the morning 

[LokeAa]

Hi @Flynn!

Is it normal for your device to show around 3%, or is it only the last night? You may remember a dream as if it had been long when it may have lasted a few seconds. I think the most important thing about sleep is that you feel rested when you wake up.

Apart from that, it is also important that the setting for sleep sensitivity is set to normal in the Fitbit App on your phone.

[Dopovo]

Sleep sensitivity has effect only on Fitbit without HR sensor such as the original Inspire, the Alta (non HR version) and the Ace series.

[LokeAa]

I thought so as well, but when I set my old Sense to "Sensitive" for a week, my readings went "wacko"

[LZeeW]

@Flynn   Fitbit's sleep tracking has a very good reputation.  But sleep stages are an EEG diagnosis, something that a Fitbit can't provide.  You also wrote that you got the same result on different devices.  I agree with you that this doesn't seem to be a Fitbit issue.  This article from the Sleep Foundation might help you a little.  You also wrote that you already do many of the suggested ideas.  If you feel like your sleep quality is good and you wake up refreshed, you might not need to do anything.  If you are concerned, you should see your healthcare provider.

I'm moving your post to the Sleep Well forum.  Your issue doesn't seem to be specific to the Sense 2.

[fxdfxd]

Hey,

I also have very short REM duration, and even if I feel terribly tired in the morning, don't forget that accuracy is not 100%.
According to this video, compared to a medical device, the inspire register light sleep instead of REM in 30% of the cases :

https://www.youtube.com/watch?v=vGPV8CYGwrI

I wouldn't worry too much if I was you!
-fx