Each morning, Dreem app determines the time it took to fall asleep (sleep cart "Falling asleep"). But how does the headband calculate this period?
Detection of the beginning of falling asleep (T0)
When you close your eyes for more than two minutes, the headband considers that this is the beginning of your falling asleep stage.
Please note :
- If you open your eyes again for two minutes, the T0 does not start, you are still considered "awake".
- If, on the other hand, you open your eyes after two minutes, the banner will always consider that you are falling asleep.
End of sleep detection (T1)
When you go into the light sleep stage (N2) or the deep sleep stage (N3) for more than two minutes, the headband considers that this is the end of your falling asleep stage.
The duration of of falling asleep thus represents the difference between the end of the falling asleep (T1) and the beginning of the falling asleep (T0).
The falling asleep stage as well as all the data displayed on the application are based on good signal quality. To make sure you have a good signal, visit our article "Improve the quality of your signal".