Note: Only use the PSU supplied with the device for safety purposes. Withings warranty does not cover defects due to the use of spare parts not provided by Withings in the original packaging.

Please follow these steps to install your Sleep: 

1. Open the Withings App.
2. Tap your Devices in the top right-hand corner of the Home screen.
3. Tap Add at the top right-hand corner of the Devices screen.
4. Tap Sleep sensors.
5. Tap Sleep.
6. Tap Install.
7. Place Sleep entirely under your mattress. You can also place it between the mattress and mattress topper/pad.
8. Tap Next three times.
9. Plug Sleep using the provided adapter.
10. Tap Next.
11. Tap Pair (iOS only).
12. Tap Pair again (iOS only).
13. Tap Next.
14. Select the Wi-Fi network you want to use or tap Choose a different network.
15. Tap Next.
    The calibration of your Sleep starts. This step can last up to 10 minutes during which a buzzing sound can be heard. We recommend that you do not sit on the bed during the process. You will receive a notification in the Home tab of the Health Mate app once the calibration process is over.
16. Tap Next.
17. Tap Done.