what are the strategies that work for you,to getting a good night's sleep?

I have wondered what works for others.Good sleep is a struggle for me.I will feel weak and lousy if I wake up during the night,because falling back to sleep is generally impossible.What I do is stay on my back,so as not to put pressure on my bladder and wake up.I make sure to turn off the smart phone.There is nothing worse than being woken up by an email notification at 4:00 am.I take a minimal dosage of 12mgs of amytryptiline.I used to take 75 mgs.,and feel like a zombie in the mornings.Getting to bed early helps quality of sleep,but I am working on making it a habit since I have always stayed up later than most people.