When sleep apnea occurs (a pause or stop in breathing), oxygen levels drop. When this happens repeatedly, the device records all the data, which can be reviewed in the app to help identify potential sleep apnea issues.
I’ve had migraines for years. I realized I also have sleep apnea when I sleep on my back. I decided to try the Wellue and see if it would help. The vibration and sound wakes me up when my oxygen level drops and I turn on my side. I am able to go right back to sleep. I wake up feeling more rested and no headaches.