FLENI – Sleep Disorders Unit / Foundation for the Fight against Childhood Neurological Diseases (FLENI) is one of Argentina’s leading private non-profit neurological and research institutions. Recognized as a major centre for neuroscience and sleep medicine, it has contributed to research in pediatric sleep disorders, Restless Legs Syndrome (RLS), and complex sleep apnea. Founded in 1959, FLENI evolved into one of Latin America’s premier teaching and research institutions, serving as an important training centre for neurologists and sleep specialists across the region.