oh that app sounds helpful! my other strategy along with the night shift mode, and lowering brightness is to just not use screens much after like 7 pm … meditate … it also might be related to the fact that I haven’t been to get my eyes checked since 2019, and I found out that my left lens prescription was a little too high. So I got that fixed, and got transitions lenses for outside. Soooo much better. I think it’s not so much the ‘light’ that affects my sleep, but more like the speedy pacing of online activity that gets me mentally jittery. A lot of online activity tends to be about ‘volatility’ in many areas.