"i am a pharmacy tech and am on ambien cr 12.5 mg. i have been on it for about 3 months now but i don&#039;t take it every night. when i do take it (as my thyroid is hyperactive) i do feel rested in the morning but when i don&#039;t take it, it&#039;s really not a big deal. it does help with my sleep but i do hide my car keys from myself just in case."