1. Reduce lighting in early evening
2. Got a comfortable bed
3. Reduce the temperature a few degrees
4. Occasionally take time-release melatonin (3 mg for me)
5. No caffeine after 1 or 2 PM
6. Comfortable eye mask (others may desire curtains that block light)
7. Minimize sounds (may use ear plugs if something is happening outside)
8. Drink less fluids within 2-3 hours of sleeping
9. Finish eating before 6:30 PM
10.&11. Have a magnesium tablet and some Vitamin B6 with vitamins/supplements at dinner time
Now, I also have generally addressed other reasons to wake up in the middle of the night, once asleep, and that amounts to another 2-3 supplements.
One of the most important things is to avoid electronic device screens for at least an hour before bed. The blue light stimulates your brain and body to go into the wake up mode, making it much harder to get to sleep.
This is a purely modern problem, of course!
Now, I also have generally addressed other reasons to wake up in the middle of the night, once asleep, and that amounts to another 2-3 supplements.
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Thank you for starting this list.
Can you clarify what these supplements are?