As they say - winter is coming - and that’s mean the day is getting shorter and shorter. Nowadays it’s getting dark quite fast out here so maybe it’s time to adjust the color temperature and the brightness of your screen accordingly to the time of the day/night? There are two alternatives that I know of that can help you with that:

# ~/.config/redshift.conf
[redshift]
location-provider=manual
adjustment-method=vidmode
brightness=0.88
temp-day=6500
temp-night=5000

[manual]
lat=here.goes
lon=your.location

Other example can be found here, feel free to adjust the settings with trial and error method and give your eyes some rest :).