Fitbit Net Time Asleep vs Recommended 8 Hours...

[GoodGuy5000HD]

"They" say we should get 8 hours of sleep, and Fitbit will report the net sleep (total sleep time - time awake).

So, should we try to get 8 hours of net sleep (e.g., 10PM--6:50AM with ~50min awake time) or 8 hours of total sleep (e.g., 10PM--6AM even though there was ~50 min awake time)? Has this ever been officially addressed by sleep doctors, given such contemporary fitness tracker information?

Given all the non-sleep factors for daytime health/fatigue/will-power feelings, I don't think I can detect whether ~50 minutes of awake time makes much difference (assuming around 8 hours total sleep time), but will try for more sleep if recommended.

[JohnnyRow]

I've wondered the same thing.  When the recommendations, though perhaps unofficial, were made,  most people had no way of knowing how much of bed time was actual sleep; so I wonder if 8 hours was actually considered 8 hours in bed, perhaps minus time when you were obviously awake such as from insomnia.

I rarely see 8 hours mentioned now.  It seems more common to see 7-8 or even 6-8 being mentioned; perhaps that is why.