Pulsense uses your basal heart rate, the lowest heart rate during sleep, in order to determine your sleeping pattern and calculate your heart rate zones.

Basal heart rate is automatically set according to the variation of your heart rate during sleep. If you wear Pulsense while you sleep, you should obtain a more accurate rate.

If you do not want to wear Pulsense while sleeping, you should wear it during the day as long as possible, especially when relaxing, so that your heart rate can be adjusted.