There’s a little known trick for making the iPhone screen less bright than the lowest level of brightness: go to Accessibility, Zoom, set Zoom level to 100% (none), then enable a Zoom filter for brightness. Then when you enable Zoom (I set mine to be the triple-click shortcut), it makes the screen really dim.
I use this every night and usually first thing in the morning as well.
I use this every night and usually first thing in the morning as well.