"i have trouble staying asleep.  doctor prescribed belsomra @ 5 mg. fell asleep as i normally do,  woke up 90 minutes later just like always.  took another 5mg, fell asleep,  woke up every hour,  on the hour.  no effect at all. 
and i&#039;m not withdrawing from ambien,  i haven&#039;t tried any rx for insomnia."