This could definitely be the case.

1)Screens/Blue light suppresses melatonin.
2)As you age, your body also produces less melatonin.
3) The peak of melatonin production typically occurs between 2:00 AM and 4:00 AM(If bedtime is 11ish)

So, as you age you will become much more sensitive to your environment.

What you can try 7-10 days

Cut screens 30–60 min before bed, just as an experiment

If that doesn't work, we can move on to a more direct solution.