Xanax (alprazolam) will result in sedation, drowsiness and somnolence for a side outcome but is not usually prescribed to help with insomnia (issues sleeping) consistently. Sleepiness after taking Xanax generally occurs inside 15 to 45 minutes. Continue reading Drowsiness and Dizziness: These are generally the most common side effects https://medeusresearchchem.com/product/buy-alprazolam-powder-online/