Inclusion Criteria:  Being 32-37 gestational age weeks, being birth weight of 1500 g and above, without a congenital anomaly, not having any disease at birth such as neonatal asphyxia, hemolytic status, metabolic disease, skin disease, patent ductus arteriosus (PDA), respiratory distress syndrome (RDS) and sepsis, no chest tube, not connected to a mechanical ventilator, not having intracranial bleeding, not taking any medication other than antibiotics and vitamin supplements, not taking opiates and sedatives within 4 hours before heel lancing, no painful intervention is applied at least one hour before the heel lancing, preterm infants whose mothers gave verbal and written consent  Exclusion Criteria:  having a congenital anomaly, having any disease at birth such as neonatal asphyxia, hemolytic status, metabolic disease, skin disease, patent ductus arteriosus (PDA), respiratory distress syndrome (RDS) and sepsis, being chest tube, connected to a mechanical ventilator, having intracranial bleeding, taking any medication other than antibiotics and vitamin supplements, taking opiates and sedatives within 4 hours before heel lancing, painful intervention is applied at least one hour before the heel lancing