Clostridium innocuum is an anaerobic, non-motile, gram-positive bacterium that reproduces by sporulation. While there are over 130 species of Clostridium, C. innocuum is the third most commonly isolated. From Wikipedia
Clostridium innocuum emerged as the most statistically robust predictor of insomnia in a large Mendelian randomisation analysis, highlighting the need for clinical trials of microbiome-based therapies.