Full screen alarm is not displayed on Android 10 - Sleep as Android

Documentation
1

Please note that Google made it impossible to start screens from background on Android 10. This is why we can no longer show the alarm screen with the big buttons under usual settings. On Android 10, the app can just show notifications from background if screen is on when alarm starts. If screen is locked we usually are able to show the full screen alarm.

This is a companion discussion topic for the original entry at https://docs.sleep.urbandroid.org//faqs/fullscreen_alarm_android_q.html
2

Whose brilliant idea was this?? I do not see any way to get the full screen alarm back on my Android 10 BLU phone.
Suggestions? Thanks!

3

Hi, the app needs “Draw/Display over other apps” permission for launching the full screens. Do you see this permission in your system settings? It is usually in system settings > Apps > Advanced > Special app access (the layout depends on the system, and can differ on some phones).
Android Go removed this permission.