INTRODUCTION The postpartum period is part of an important process for mothers and fathers. A sense of security is central as it might influence a parent's journey towards becoming a successful parent. The aim was to determine factors affecting parents' postnatal sense of security (PPSS) before postpartum discharge from a hospital in Konya, Turkey. METHODS A descriptive study was conducted. From January 2019 to March 2019, a questionnaire was given to a convenience sample of 188 couples discharged from a regional hospital in Turkey. The sense of security was assessed using the PPSS instrument, with low scores defined as those less than the mean. RESULTS Low and high sense of security was based on the mean in the population, for mothers 49.36 and for fathers 34.90. It was found that 43.6% of mothers and 69.7 % of fathers had a low score, which was linked to some specific factors in the postpartum period. These were the type of birth, being ready to take responsibility for baby care, being ready to be discharged, being healthy, having any concern about the baby's health, social support presence, having professional support, and presence of a sense of security. CONCLUSIONS Many parents, particularly fathers, have a low postnatal sense of security. In the postpartum period, it is very important for midwives, who are always with the family, to identify the risks for a low sense of security during this period and provide effective care. More studies in different settings with larger samples are recommended.