"great for insomnia and i can now sleep for 7-8 hours.  first week i took it, i had the grogginess for 1st hour after waking up, but that has gone away.  i only take it 2 -3 nights a weeks and it gives me all of the rest and sleep i need.  i am also a sleep apnea patient and sleep with a cpap machine as often as i can.  this medicine helps me to keep cpap mask on all night.  i have copd and mild depression also.  i do not think i would take it every night.  i am on 15 mg."