Customizable Sleep Score algorithm
under review
D
Diego T
Bevel is estimating a sleep score for me that is much lower than the actual one.
For example, yesterday I slept wearing both a RingConn 2 and an Oura Ring 4. The first one gave me a score of 82 and the second one a score of 87, while Bevel gave me a score of 52. I slept about 7 hours and 40 minutes, which is not bad at all, especially considering that I’m 53 years old and had set a goal of 8 hours. Moreover, my subjective feeling upon waking was that I had rested perfectly. These discrepancies are more the rule than the exception.
I understand that Bevel takes several factors into account when determining the sleep score, but given that all wearables estimate sleep stages rather poorly, I believe the ideal approach would be to allow the user to choose the weight assigned to each factor. In my case, total sleep duration is by far the best predictor of its quality.
In short, my suggestion is: give more weight to total sleep duration or, ideally, allow the user to configure how much weight to assign to each factor.
Randell
under review
Randell
Hi Diego T, I’d like to check and verify a few details for this. Can you please confirm the following for me?
- In Bevel -> Profile -> Customization -> Goals, did you set this up with the same duration as the other apps you mentioned?
- How long have you been using Bevel?
- Are you tracking your sleep via Apple Watch or another source?
- Also, please note that we’ll be adding more age-dependent score adjustments soon, so stay tuned!
D
Diego T
Randell 1. For the past few days, Bevel has been set to calculate it automatically (and right now it assigns me 8h11m), but before that I had it set to 8 hours. In the other apps I’ve set 8 hours, and the scores they give me are much higher (at the moment I’m testing PeakWatch, RingConn, and Oura).
- January 20, 2025
- Right now I’m doing it with two rings: RingConn 2 and Oura Ring 4. In the first few months I was using the Apple Watch Series 10, but I found it uncomfortable to sleep with. The sleep scores were also very low with it, although maybe not as much as now. I’ve also tried an Ultrahuman Ring Air, but the sleep estimates it gave were terrible. However, both RingConn 2 and Oura Ring 4—although they differ a bit from each other—do provide fairly realistic data. The Oura Ring 4 is probably on the same level as the Apple Watch. It’s Bevel that gives an extremely low score.
- Age determines physical condition, and that, in turn, determines sleep needs. Without more data, I understand age would be a very important factor to take into account, but I think it’s already indirectly included in other health metrics (HRV, for example).
Looking at the sleep details in Bevel, I think the factors it overestimates in importance are sleep debt and regularity.