The app is eating a lot of data on my phone. Is there a way to fix that?

Yep. Just visit “Account Settings,” go to “Automatic Download,” and toggle on “Wi-Fi Only.” This will ensure that Waking Up will only download content automatically when you’re connected to Wi-Fi, which won’t use additional data. If you are an Android user, you can also turn on the “Data Saver” feature, which will provide extra protection against unnecessary data usage.