Aim: To elaborate a nursing care plan for infants between 12 and 18 months with altered sleep patterns. Method: a descriptive study with a quantitative approach, carried out in two public institutions in Fortaleza / CE. The sample comprised 128 participants: 64 infants and 64 caregivers. An instrument for sociodemographic characterization and the Infant Sleep Questionnaire (ISQ)-Brazilian version were applied. Results: the plan of care was elaborated according to the questionnaire and based on the most frequent alterations identified by caregivers and the scientific literature. The most discussed items were "waking up during the night" and "sleeping in bed with their parents". Conclusion: we emphasize the importance of implementing the plan as a nursing care tool in order to promote well-being and quality of care with regard to infant sleep.