One of the most interesting aspects of sleep monitoring with the Apple Watch is its ability to show the phases of sleep. During the night, we go through cycles of light sleep, deep sleep, and REM. Well, the Apple Watch provides detailed information about the duration of each phase, allowing you to better understand the quality of your sleep.
By tracking sleep with Apple Watch, I've found that spending more time in deep sleep and REM sleep correlates with feeling more rested when you wake up.
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Heart rate during sleep
Another important aspect of sleep monitoring with the Apple Watch is the ability to measure heart rate throughout the night. Heart rate can show information about stress levels and ability to relax during sleep.
Normally my heart rate tended to decrease during deep sleep, indicating a deeper state of relaxation. Additionally, by linking this data to sleep phases, anyone doing so can identify moments of light sleep that are associated with fluctuations in heart rate.
Respiratory rate during sleep
Respiratory rate is another interesting metric that the Apple Watch also provides us with during sleep monitoring. This information shows how our breathing varies throughout the night, which can be indicative of respiratory problems or stress. Although this is not the case for me, if you determine that your breathing rate during sleep is irregular or high, you can use the Mindfulness app to perform meditations to help you relax before sleep.
So, is it worth using the Apple Watch at night to track sleep?
My experience using the Apple Watch to monitor my sleep has been very interesting and has allowed me to get a better idea of my rest. The metrics it offers us are very interesting and can be easily viewed in the iPhone's native Health application. This application is also now available on the iPad.
The only drawback is that I currently use an Apple Watch Ultra and since it is a fairly large model, it can be somewhat uncomfortable. So if you want to put into practice wearing the Apple Watch during sleep, if you have a base model of Apple Watch you will see that it is much more comfortable.
