I agree on the melatonin, 1 mg before bedtime would be sufficient. Good for you avoiding the pharmaceutical "cures", almost all of them promote dementia in later life. Other more alternative aids would be camomile tea, valerian root, L-theanine, and something 90% of the Western world is probably deficient in anyway, MAGNESIUM. I'd recommend 400 mg magnesium glycinate, avoid the cheap laxative magnesium oxide sold at grocery stores. There is also something your body makes that you produce less of as you get older, GABA (Gamma Aminobutyric Acid). A small starter dose would be 250 mg, and this will also make your dreams more "vivid". It's often used by serious body-builders as it improves REM sleep when growth hormone is pulsed by the body. There are harmless symptoms to some if you take too much, like slight chest pressure (scary but not a problem). I have years of personal experience with all of these, but you may want to hold off on the GABA as a last alternative, unless you want some trippy dreams. Oh yeah, one more thing along the lines of the magnesium, is to take a nice long epsom salt bath, with the first 20 minutes or so absorbing magnesium and the next 20 releasing toxins.