Samsung Health - Mental Recovery

[howiez]

When examining the Sleep score factors in Samsung Health I get the following screen for Mental recovery

The Mental recovery factor seems to be related to quantity of REM sleep but the bulleted text refers time in wakefulness. Does anyone know how these two are related? Also, the time in wakefulness doesn't seem to match the awake time in the accompanying graph.

Thanks for any insights you can provide.

[Dan2023]

It means, that the positive affects of REM sleep are reduced if you are consistently waking up for long periods during the sleep.