I've, by accident, discovered a couple of new things that have improved my sleep. With aging a good nights sleep has become harder to accomplish. I noticed that when I started taking a low dose calcium supplement with a vitamin K2 supplement in the evening I started getting sleepy about an hour later. This happens every time I take them so I don't think it's just a coincidence. The calcium and vitamin K2 give me a really good night's sleep. Also, I noticed that when I drink tulsi tea (holy basil) I get very sleepy and when I drink it in the evening I don't wake up to go to the bathroom. I'd like to see if these things help other people with their sleep problems.