The link between the gut microbiome and sleep. The gut microbiome is a complex ecosystem of microorganisms that live in our gastrointestinal tract, playing a crucial role in maintaining our overall health. Recent studies have shown that the gut microbiome can influence our sleep patterns and overall sleep quality. The gut microbiome communicates with the brain through the gut-brain axis, allowing it to influence brain function and behavior, including sleep. The gut microbiome affects sleep by producing neurotransmitters such as serotonin, dopamine, and GABA, producing metabolites like SCFAs that regulate the body's circadian rhythm, and regulating the body's stress response. Maintaining a healthy gut microbiome through a balanced diet, regular exercise, and probiotic supplementation can help improve sleep quality and promote overall health and wellbeing.