"the most effective and reasonable sleep aid i&#039;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&#039;s not something you should be taking every night. but it&#039;s still my go-to drug whenever i know that i need a good night&#039;s rest and i&#039;ll be able to sleep in the following morning."