NightOwl App - Error Code 10 (EC10)


Uh oh! Looks like there were some problems with last night’s sleep study. Not to worry, let’s walk through on how we can fix this.


  • Bluetooth Instability

It seems like your smartphone cannot maintain a constant Bluetooth connection with the NightOwl sensor.  You may have noticed a blue light flashing on the sensor during the sleep test as your NightOwl sensor was trying to reestablish the connection.

This could be caused by the NightOwl sensor being out of range of the smartphone. We advise you keep your smartphone within a 2 meter radius of your bed.

If your NightOwl sensor was already within range, the issue could be with your smartphone. You can avoid this issue by using an alternative smartphone or tablet. Open the instruction email we sent you on your new smart device. Follow the steps in the email to download and configure the app. You should be able to continue your home sleep study for the remaining nights.


  • Poor signal quality

It appears that the sensor was incorrectly wrapped around your finger. Having the sensor on too tight or too loose can cause errors with the test. There is no need to strap the device tightly. If you experience any discomfort, readjust the adhesive wrap so the sensor gently attaches to your finger, without stretching the wrap. Similarly, the sensor should not be too loose. As long as the sensor maintains contact with your finger and stays in position during the night, we will be able to collect data for your sleep study.


Need more support? The ResMed team would love to have a chat with you! You can reach us on 1800 737 633. Alternatively, you can email us on