Buy Ambien Online is used as a short-term treatment to help manage insomnia (trouble sleeping). Always take the drug exactly as prescribed by your doctor. You’ll swallow Ambien or Ambien CR by mouth just before bedtime. Be sure to allow at least 7 to 8 hours for sleep after taking Order Ambien or Ambien CR. Do not take Ambien or Ambien CR with food, as this can cause it to take longer for the drug to work.