insomnia
"I take this about three times a week to help me sleep. I have had insomnia for two years.  Even though I work 12-14 hours a day and jog 5 miles 4 times a week, I still could not sleep. Started taking this and it did not do much at first.  But now it really works! I can sleep about 7 hours and only wake once or twice and can go back to sleep pretty quickly usually. I wish I could take it every night but doing this lessens its effect on me.  I save it for 3 nights a week and struggle through the others.  Side effects are constipation, I never 'go' the next day.  Also, pretty bad rebound insomnia, I do not sleep well the night after I have taken it."