"i have had my battles with the inability to stay asleep of 10 or 12 years.  go to sleep just fine but wake up at the 5 hour interval and cannot get back to sleep.  i would get very tired during the day - it was terrible.  i heard of this at costco and started taking 1/2 tab per night.  bang!  8 hours of great sleep!!!  i don&#039;t have drowsiness and feel like i used to.  it doesn&#039;t know me out - i can wake up to go to the bathroom. ( i am over 55 and a guy) but i go right back to sleep.  love this stuff.  i hope it&#039;s not bad for ya because i need  good sleep."