Epithalon vs Thymosin Alpha 1: Longevity and Immunity Epithalon is often misunderstood as a sleep peptide. It's really a circadian rhythm peptide. Before using it, my restorative sleep averaged 48%. Within 3 days, it increased to 60%. That Epitalon Peptide The Key to Longevity & Youthful Aging Hubmed Epithalon Blue Skies Health & Wellness Clinic Transgenerational effects of sleep deprivation: Behavioral and epigenetic implications for maternal and offspring health ScienceDirect