I also have a light sleep. In my case, light sleep means that I wake up very easily to almost any sound or movement. I most of the time fall asleep very quickly but sometimes not.
I tried most of the things shared in the article, and indeed, for most of them, it is hard to say if they improved or not over the long run.
Here is one thing that worked for me:
1. I am doing 20 to 30 minutes of what I call light sports every day.
2. I take magnesium l-theonate and apigenin 1-2 hours before sleep.
3. I lost about 10kg, from 100kg to about 90kg.
4. I eat something light around 6 PM.
What do I mean by light sport? For me it measn zone 2 running or I adapted some HIIT training to tone down a bit the intensity or walking a lot (when I am in vacation).
Why 20 minutes to 30 minutes? I only have time for that. It may be better to do more, but that is the amount that I am sure I can commit every day.
Why every day? For me, the effects of this started to kick in after 1 week or more. The first week of doing sport every day I slept well, but I also felt tired the next day. But after 1-2 weeks, I noticed that the tiredness during the day started to disappear.
This is not a scientific study, so I am unsure if magnesium and apigenin have any effect or if it is just a placebo. I plan in the next period to not use them at all for 2-3 weeks and see the effects.
I noticed that if I do this every day, my average sleep gets very good: I wake up less times during the night, the sleep is deeper. I fall asleep around 09:00 PM and wake up at 05:00 AM, fully energized.