New! Drug-free. Get a good night's sleep, naturally. Sweet dreams lie ahead with Unisom Simple Slumbers. It's completely drug-free, and works with your body's natural sleep cycle so you can fall asleep gently, dream big and wake up refreshed. Drug-free triple effect melatonin formula. Melatonin 5mg: to help you fall asleep faster, wake up less, and feel refreshed in the morning. Passionflower + Lemon Balm: believed to soothe & help calm the mind. Vitamin B6: an antioxidant that may support brain health.