In the case study on orthosomnia, researchers found that patients had been spending excessive time in bed to try to increase their sleep numbers, which may have made their insomnia worse. And they found it difficult to persuade patients to stop relying on their sleep trackers, even if the numbers had been flawed… More here.
Interesting study. I have tracked my sleep for more than 4 years and in that time I have gone from a bad diet to extreme dieting to a good diet. I have gone from being very overweight to arguably underweight to about the right weight.
When I look back at my stats the average each month has not varied by more than 10 minutes at ‘any’ point and this is with a variety of trackers. I can’t be sure, but I do wonder if we will sleep the amount we need to regardless of external factors. For me this is just over 6 hours a night, including weekends.