The research is a randomised controlled experimental study. It was conducted to examine the effect of breastfeeding pillow on breastfeeding self-efficacy and postnatal comfort in primiparous puerperas who gave birth by caesarean section. The answers to the questions "Is the breastfeeding pillow effective on breastfeeding self-efficacy in primiparous puerperium giving birth by caesarean section?" and "Is the breastfeeding pillow effective on comfort during breastfeeding in primiparous puerperium giving birth by caesarean section?" are investigated. The puerperas in the experimental group were allowed to use a breastfeeding pillow during breastfeeding and evaluated at 24th and 48th hours. Puerperas in the control group continued routine breastfeeding and did not use a breastfeeding pillow. They were evaluated at 24th and 48th hours.

Inclusion Criteria:

• Graduated from primary school
• No communication problems
• The desire to breastfeed your baby,
• The mother and the baby do not have any health condition that may prevent breastfeeding,
• First pregnancy,
• Having given birth at 37> 37 weeks of gestation,
• Having a baby weighing at least 2500 g,
• Over 18 years of age,
• Caesarean section with a single healthy baby

Exclusion Criteria:

• having given birth more than once
• Under 18 years of age
• communication problems
• unhealthy baby birth