insomnia
"The most effective and reasonable sleep aid I've taken. A single pill (25 mg) before bedtime will make me drowsy enough to fall asleep within a half hour, and it generally keeps me asleep throughout the night. Drowsiness the next day is a problem for me, however, if I take it too late in the previous night; it tends to stay in my system for quite a while and, as said in previous reviews, it's not something you should be taking every night. But it's still my go-to drug whenever I know that I need a good night's rest and I'll be able to sleep in the following morning."