The present study aimed to evaluate the effect of back massage on sleep duration among postpartum women. An intervention study design was used. The study was conducted at the postnatal units at Damanhur Hospital and follow up was done through home visits. A Purposive sample of sixty (60) women were included in the study, those women that fulfilled the inclusion criteria were divided into two groups (intervention group who received back massage) and control group(who received routine hospital care).Data were collected through using two tools (Structured interviewing questionnaire sheet named "back massage to improve quality of sleep among postpartum women" and Pittsburgh Sleep Quality Index) .The main results of the study were the following: There was highly significant improvement in sleep duration in Intervention group at initial time, 2nd time and 3rd time. Conclusion and recommendations: the current study concluded that back massage had significantly improved sleep duration among postpartum women. The following is recommended: Nursing staff should be trained on back massage technique and apply it as a part of routine postpartum care.