NightOwl App - Error Code 01 (ECO1)

Find out what error your NightOwl or onesleeptest is having.

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

  • Insufficient phone battery

Your phone could have run of battery or turned off during the sleep test. It is vital for your phone to be ON in order to maintain Bluetooth connection with your device. Make sure your phone is charging for the duration of your sleep test.

  • You could have turned your sensor OFF

 It is possible that you manually turned OFF the sensor before we were able to collect enough data for the sleep test. We need you to sleep with the device for at least 4 hours in order to provide an analysis of your sleep. 

  • NightOwl Companion app keeps shutting down

The NightOwl Companion app is repeatedly shut down by 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 test 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 test.

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