Activity
Benjamin Davies posted idea #5244.
Something simple you could try is heavily dimming your computer and other devices and using strong red filters for the last few hours before bed.
Not just the standard night shift features, which are often far too weak. I mean making the screen properly red so that almost all of the blue and green light is removed.
You might be surprised by how dim you can make your devices while still being able to use them fine. You just need to give your eyes a minute to adjust. I routinely have my iPhone and MacBook on their dimmest settings.
Dimming or reddening the room lighting could help too. (Following up on #5243.)