"after a car accident where i suffered a head injury i had horrible insomnia worsened by pre-existing fibromyalgia. nothing over the counter was working at all to help me sleep. my doctor put me on this. when it works, it&#039;s awesome. i cannot have any food on my stomach if i want this to work, though. i don&#039;t take it until i&#039;ve washed my face, brushed my teeth &amp; am actually in bed for the night. that&#039;s the trick! i hate that the fda cut dosage by half for women- the lower dose doesn&#039;t work for me because i&#039;m big/tall. weight makes a difference in this meds case. not everyone sleep-drives or sleepwalks on this."