Pepto PM Gummies, Help Relieve Occasional Heartburn, Indigestion, Upset Stomach and Sleeplessness. Pepto PM is a dietary supplement with calcium phosphate and melatonin to help soothe occasional heartburn and indigestion that happens at nighttime and help with occasional sleeplessness*. Pepto PM gummies contain melatonin, which is shown to help regulate your sleep cycle without next day grogginess. Pepto PM gummies come in a delightful berry flavor and are convenient and easy to take with you on the go for any stomach upsets you may have while away from home or on-the-go. From the makers of Pepto Bismol, the #1 Pharmacist recommended brand based on a Pharmacy Times 2022 Survey-upset stomach remedies category.