If your sleep sensor is blinking red, please try the following options:
- Factory reset your device.
- Deflate your sleep sensor.
If the issue persists, please reach out to Customer Service by clicking the Contact us button at the bottom of the page.
https://support.withings.com/hc/en-us/sections/6216038415249-Aura
https://support.withings.com/hc/en-us/sections/200571466-Troubleshooting