"i have been experiencing insomnia for the past several years. i have sleep  apnea and use a cpap machine.  my doctor has prescribed amien for my insomnia but it only works some of the time so i started adding the sleep tabs.  i have read reviews where people have to only take 1/4-1/2 a tablet to sleep, me i can take 2 or 3 with ambien and still stay awake for the night. i&#039;m not sure why but it doesn&#039;t work for me.  i&#039;m working with my gp to resolve the issue because i can go for weeks on only 1 or 2 hours a night sleep.  it makes it difficult to focus and be on my game at work. just an fyi for those looking for something that works..."