"i am in my seventies and my doctor asked me to try and wean myself off of ambien by using this new drug called belsomra. last night using the drug for the first time i had the one of the worst nights of my life. i had horrific and frightening nightmares where i felt like i was awake but i couldn&#039;t get up and i never felt like i went into a deep sleep.  all day long today i have felt like i&#039;m in a fog and my equilibrium is off. i will never use this drug again it is a nightmare in itself."