Products Google Fit Guides Read Sleep Data To read sleep data, query the sleep sessions for sleep activity segments as you would do with normal fitness activities. For further details on querying sessions, see the documentation on working with sessions for Android and REST. Except as otherwise noted, the content of this page is licensed under the Creative Commons Attribution 4.0 License, and code samples are licensed under the Apache 2.0 License. For details, see our Site Policies. Java is a registered trademark of Oracle and/or its affiliates. Last updated March 21, 2019.