Lunesta (eszopiclone) is a non-benzodiazepine sleep medication prescribed to help adults fall asleep faster and stay asleep longer. It works by calming overactive brain activity to restore natural sleep patterns. Available in multiple strengths, Lunesta is effective for both short-term and chronic insomnia. Doctors recommend taking it before bedtime under medical supervision to avoid next-day drowsiness and minimize risks of dependence.