GNC Melatonin 5mg gummies is a supplement that offers a natural way to support restful sleep. Your body naturally produces this hormone in your pineal gland and creates less of this sleep-influencing substance during the day and more at night. Melatonin 5mg gummies for sleep may be beneficial if you have a sleep schedule that frequently changes. Free of soy and gluten to accommodate individuals with sensitivities to common allergens. As a dietary supplement, adults take two gummies prior to bedtime and chew thoroughly before swallowing.