insomnia
"Using the drugstore chain's own brand of doxylamine succinate. I am a 79-year-old woman, with a long history of insomnia. I have tried other remedies, but find this the most effective, with virtually no adverse side effects. I have discovered that half a tablet is sufficient to give me a good, solid  eight hours of sleep, with any slight grogginess disappearing very quickly in the morning. I don't take it every night because of concerns about dependency, so it usually amounts to not more than 2 or 3 nights a week. Enthusiastically recommended."