"began taking zolpidem due to insomnia.  i had no trouble falling asleep but i would not stay asleep and wake up 5-10 times a night.  now i fall asleep and sleep well for an average of 5 hours. usually by 3:30am i am awake and not able to fall back to sleep.  i get up for work at 4:30 am.  so at least i am getting 5 good hours but i wish it would last longer.  i long for 7-8 hours of sleep.  i have had no adverse effects.  don&#039;t wake up groggy and no memory loss.  "