insomnia
"I've been taking Ambien now for about 8 months; I am also prescribed to benzos (clonazepam). Recently my doctor let me try a 7 day trial of Ambien CR- I did not feel much of a difference.  I have read many of the blogs that people have written and they seem to have the same problem as me...  sometimes it works and sometimes it does nothing!  Actually its been two weeks since I last took it until tonight and it seems to be having no effect.  If anyone has a solution I would love to hear about it.  Thanks. "