"have been taking ambien as needed for about a month. it&#039;s worked almost flawlessly and very reliably each time i&#039;ve taken it, and i&#039;ve experienced no negative effects. it&#039;s a very calm, peaceful transition into sleep. i used to dread bedtime because my thoughts raced constantly, but this drug has provided a very satisfactory solution. all in all, a quite safe and reliable solution to insomnia."