When we can manually track when we go to sleep and when we wake up, between those two events is how long we sleep. It is also important to have adequate time in the most restful state of sleep: deep sleep and REM sleep. This is what determines the quality of sleep. Deep sleep is important for physical relaxation and REM sleep is especially important for creativity and mental relaxation (e.g. cementing memory).
Insights into your sleep quality from some wearable devices can be very helpful if you use them to evaluate which behaviors affect your sleep quality and ability to get the amount you want to do your best.
How to use tracker for sleep? Don’t just measure your sleep time – also keep an eye on behaviors that may affect the quality or quantity of your sleep. For example, we know that eating time, pre-bed screen time, drinking alcohol or caffeine, and working out of bed can all affect sleep.
To get the most out of your sleep data, compare this to other behaviors that you may need to track manually. Looking at these data side by side may enable you to see what affects your sleep the most, which will be different from anyone else.
For example, your friend may be able to have one or two beers and have no problem sleeping through the night, but it may disturb you to wake up at 2 o’clock. On the other hand, you may be able to work in bed all day, but if he does the same, Can’t read