anxiety
"Been taking buspirone on and off for 15 years, for insomnia, anxiety, and symptoms of post traumatic stress disorder.  Sleep is my #1 issue (or lack thereof).  Very effective for insomnia almost immediately upon starting it (after a period of not taking it). I sleep easier within the first day or two.  Within a week I get to sleep easier and more soundly.  Ironically I've always had the side-effect of vivid memorable dreams.  Doesn't seem to increase bad dreams though, just makes them more memorable.  No other side effects.  I have, depending on the stress in my life or other medicines being taken, generally been on 5mg/day to 20mg/day, with good results.  At 30mg/day I feel dopey. Prefer to take doses later in the day, not first thing in the morning."