It is widely recognized that the use of non-pharmacological methods in neonatal pain management is low both globally and in our country. Nurses play a crucial role in managing pain through various techniques and in preventing its negative effects on newborns. Toys with sounds, lights, and different features have been found to effectively capture infants' attention. Consequently, it is anticipated that baby crib mobiles, which combine these attention-grabbing features, could serve as effective distractions during needle interventions, potentially reducing pain and stress. However, there is a lack of research on this specific application.

Newborns often undergo needle procedures shortly after birth, such as vitamin K injections, hepatitis B vaccinations, screenings, and routine immunizations. Depending on the baby's condition, these procedures may need to be repeated, and additional blood samples might be required. These painful procedures can cause significant stress for the newborn and may lead to neurocognitive, physiological, metabolic, and behavioral issues. Pain experienced during these procedures can negatively impact the newborn's future reactions to pain. Therefore, inadequate pain management can result in both immediate and long-term adverse effects.

Organizations such as the International Neuropsychiatric Pain Group and the American Academy of Pediatrics advocate for reducing pain in infants during procedures, recommending non-pharmacological methods as the first line of management. These methods, aimed at providing analgesic effects by creating a relaxing environment, are important because they do not have side effects. Some proven non-pharmacological techniques include breastfeeding, skin-to-skin contact, swaddling, music therapy, oral glucose, and pacifier use.

Music therapy is a widely used non-pharmacological method that helps reduce pain perception in newborns. Studies have shown its effectiveness in various settings. For instance, research with premature newborns found that music therapy during central venous catheter placement reduced physiological and behavioral reactions. Another study with 120 healthy newborns reported that having a musical baby crib mobile in vaccination rooms decreased pain levels and crying times. Other studies have similarly highlighted the positive effects of listening to or singing lullabies during painful procedures.

Inclusion Criteria:

• born between 38-42 weeks,
• being 0-28 days,
• absence of visual and auditory problems,
• not using any pain reliever or sedative medication in the last four hours,
• parents' willingness to participate in the study,
• parents' knowledge of Turkish,
• parents' ability to read and write.

Exclusion Criteria:

• having a preterm birth,
• having a disease that causes chronic pain,
• having visual or auditory problems,
• using any pain or sedative medication in the last four hours.