I have a Series 11 watch and have been following these comments about the newer watches and this "Readiness" score.
I also have a series 10, and when I bought it I had always thought I should have got the ultra so I made the jump this round because of the enhanced sensors and future use of it in Apple Health.
In reality now that I have the ultra, except for the longer battery life, (3 full days) and the constant heart rate measure the AW10 would have continued to serve all of my needs.
This proves, I guess, one of the laws of quantum mechanics, namely that you cannot observe and measure something without affecting or disturbing it. So everyone distorting their behavior to try to measure their sleep and get a better sleep measurement and score ... And the anxiety expressed here about this "Readiness" score ... I wonder if that anxiety is disturbing the user's sleep.
LOL Yes I suppose that is what I was doing but truth is I was concerned that perhaps the sensors on the watch were faulty so I thought if I modify my sleep we should see a difference. It was never about the readiness score. At 72 I pretty much know how ready I am each morning. It was the fact that it did not produce the score so I thought there may be something faulty in the watch.
All kidding aside, one has to take these sleep scores with a grain of salt. I have gotten sleep scores of 98 (very high) but sometimes felt better rested with a sleep score of 84 (high). So my own personally determined (from how I feel) "Readiness" rating might be sometimes better with lower rated sleep? The real answer comes later in the day when I do an intensive outdoors cycling workout, the time is good (fast) for the ride when I am feeling good, which SOMETIMES agrees with the Apple watch sleep score but not always. What one eats and when is also important for intense exercise or workouts.
Absolutely
If true, then this might not be the right thing for me. Even when I get more than 8 hours of sleep (I usually get between 7 and 8 hours but sometimes more than 8 hours) it is not uninterrupted, and even 4 hours of uninterrupted sleep for me is a bit unusual. I don't remember these wake ups but the watch says I was awake several times during the night and for a minute or so each time. Maybe just rolling over or something but that's how I sleep.
I don't know how much weight the 4 hours undisturbed holds. I did get a readiness score and like yourself I do wake up when I roll over etc so there were numerous momentary wake ups in all of my nights and most nights a bathroom break around 4 hrs in so I think the "You need 4 hrs undisturbed" was the relief the apple tech needed to get me off the phone.