Breastfeeding brings many benefits to both mother and infant. Although, many women stop breastfeeding their infants too soon. The perceived association between breastfeeding and sleep may influence their decision to terminate breastfeeding. In our systematic review, we focused on mapping the relationship between infant feeding method and total sleep time (TST), number of nocturnal awakenings, awakenings after sleep onset (WASO) of mothers and infants and sleep quality of mothers. We searched four databases according to selected keywords and inclusion criteria - articles published in peer-reviewed journals between 2012 and 2022; English language; a sample consisting of mothers, infants, or both (without psychiatric and health problems); a comparison of the sleep quality of breastfed and formula-fed children or breastfeeding and formula-fed mothers. We read 260 full texts of selected articles. A total of 35 articles were included in this review. Due to significant heterogeneity, meta-analysis was not possible to accomplish. The results are processed according to narrative synthesis. Most studies agree that breastfed infants wake up more often at night. Total sleep time and time spent awake during the night (WASO) did not differ between breastfed and non-breastfed infants. We observed identical results in sleep variables among mothers. Additionally, there was no difference in maternal sleep quality. The synthesis revealed that the results may have differed due to using subjective, objective methods or the infant's age. It is important to remember that night waking is a more complex concept. Infants wake for many reasons, not just due to breastfeeding. The narrative synthesis indicated that the chosen study design, measurement method, the variables, and the infant's age could influence outcomes. In addition, other variables appeared that may affect the entire process. Therefore, we recommend that attention be paid to this in future studies.

母乳喂养给母亲和婴儿带来很多好处。尽管如此，许多女性过早停止母乳喂养。母乳喂养和睡眠之间的感知关联可能会影响他们终止母乳喂养的决定。在我们的系统综述中，我们重点绘制了婴儿喂养方法与母婴总睡眠时间（TST）、夜间觉醒次数、入睡后觉醒次数（WASO）以及母亲睡眠质量之间的关系。我们根据选定的关键词和纳入标准检索了四个数据库 - 2012 年至 2022 年间发表在同行评审期刊上的文章；英语; 由母亲、婴儿或两者组成的样本（没有精神和健康问题）；母乳喂养和配方奶喂养的儿童或母乳喂养和配方奶喂养的母亲的睡眠质量的比较。我们阅读了 260 篇精选文章的全文。本次综述共纳入 35 篇文章。由于显着的异质性，荟萃分析不可能完成。结果根据叙述综合进行处理。大多数研究都认为母乳喂养的婴儿在夜间醒来的频率更高。母乳喂养和非母乳喂养的婴儿的总睡眠时间和夜间清醒时间（WASO）没有差异。我们观察到母亲睡眠变量的结果相同。此外，母亲的睡眠质量没有差异。综合显示，由于使用主观、客观方法或婴儿的年龄，结果可能会有所不同。重要的是要记住，夜间醒来是一个更复杂的概念。婴儿醒来的原因有很多，不仅仅是因为母乳喂养。叙述综合表明，所选的研究设计、测量方法、变量和婴儿的年龄可能会影响结果。此外，还出现了其他可能影响整个过程的变量。因此，我们建议在今后的研究中对此予以重视。