Other enrollment requirements: All infants will be enrolled between >72 hours (end of transition period) and </= 7 days. Expected to remain of the current mode of support for the 48-hour intervention period. Infants with major congenital anomalies, haemodynamic instability (patent ductus arteriosus-PDA) or requiring catecholamines treatment, clinical evidence of seizures or ongoing sepsis (positive blood culture) during the study, or within 24 hours prior of enrollment, will be excluded.