Note that creating insight reports is a feature for premium members only. Having ST+ without premium membership will not give you access to insight reports.
If you are a premium member, then make sure you are logged into the appropriate Azumio account and have your data loaded from our server. Then head to the insights tab, which is located at the bottom left corner of Sleep Time.
From the insights screen, you should see a blue "Generate Report" button which allows premium members to create and send detailed reports of their sleep trends.