Xan what? Ambi-who? Get quality sleep without the prescription. Made for those who have difficulty falling asleep or find it nearly impossible to sleep through the night. Insomnia doesn't stand a chance against this combination of Hops, Valerian root, Lemon Balm, St. John's Wort, and Lavender. …And best part? You wake up the next morning well-rested without the grogginess.