This randomized controlled trial aims to compare the effects of maternal voice, touch, and scent on pain and stress levels in newborns during a routine heel lance procedure. Newborns will be randomly assigned to one of three intervention groups or a control group. Pain and stress responses will be assessed using validated neonatal pain and physiological measures. The findings of this study may help identify effective, low-cost, and non-pharmacological interventions that can be used to reduce pain and stress in newborns during routine clinical procedures.