My pdoc recommended I try Melatonin. It's an over-the-counter dietary supplement that helps to induce sleep. He suggested I take it about 3 hours before going to bed. I tried it & , honestly, it didn't seem to do that much for me, plus, I felt sort-of groggy the next day. On the plus side, though, it's pretty inexpensive. When I can't sleep, I get up & do walking meditation. I simply walk slowly & deliberately throughout the darkened house, sensing my feet touching the floor as I walk. Thoughts come, & thoughts go. I just allow them to drift along at their own pace. I'll typically walk for an hour or two at a time. When I go back to bed, I almost always fall asleep.