Improving the gut microbiota could improve the quality of sleep, as the gut bacteria also produce melatonin that the brain uses to regulate sleep. It has been found that that administration of a probiotic bacterial strain may improve sleep quality and reduce the number of episodes of wakefulness in individuals suffering from sleep alterations and/or insomnia and, specifically, induce a more mature sleep pattern in infants and young children. https://probiotic.creative...