My secret to sleeping

I have had trouble sleeping for about eight years.  I figured it was part of aging but I love my sleep.  I have always liked to have 8-10 hours of sleep at night.  I can normally fall asleep anywhere-- on the road (as a passenger), by the pool, on a plane, even while the kids were still home and we all watched tv, I could sleep.  So, not getting enough sleep was causing me a lot of frustration.
For a short period of time, I tried Tylenol PM-- but doing that long term was not a good, healthy choice.  Then, for a real long time, I just lived with it.  Woke up at around 3:30 every morning and would stay awake until 6.  NOT ACCEPTABLE!  So, I started cutting out caffeine after 4pm.  I began seeing results every few nights but I stuck with it.  Every now and then I would wake up again and stay awake for a few hours, but it is better.
About a month ago I read an article about turning off your phone, computer, etc an hour or so before bed.  One thought is it helps your brain wire down and get ready for sleep.  The other is the glow from the devices passes through the retina and into the portion of the brain that controls the sleep inducing hormone and therefore delays falling into a good sleep.  So, I have now stopped checking my phone and getting off my computer at least an hour before bed.  It's working!  I am even sleeping most nights until it is time to get up in the morning... no getting up in the middle of the night!  I love waking up and looking at the clock and realizing I have slept all night!  Such a great feeling.  It's hard to not check my phone, one last time or play one more round of Words with Friends, but, for me, turning these electronics off, allows my eyes and brain to prepare for a wonderful nights rest.