1. The first step is to open the DREEM Portal and type in your administrator login and password. Click Log in. If you don't have access to administrator credentials, please refer to Difference between Admin account and Supervised account
2. Select the recording you want to download. You should see the recordings of your study participants here.
If you don't, please refer to I can't see my participant's data in the Dreem Portal.
3. Select the format you prefer. Alternatively, you may look at the data directly on the Dreem Portal by clicking on Timeseries.