nellie,
exercise 3-4 hours before bedtime. not later than that (unless that would mean a health altering sedentary life of course). My sleep doc told me that I could take a warm shower instead if I were really lazy because it warms the body temperature.
join us on the other thread!
no dopamine. that is seriously awesome that you experiencing life without that yucky sleepy feeling.
with less sleepiness, you may have more energy for more energetic wild attention lol. (i know. not the point 
).