The aim of the study was to highlight children's sleep, mainly how long children sleep at preschool but also how long their total daily rest period is. Furthermore, we examine the collaboration between guardians and educators regarding children's sleep. What we wondered was whether sleep could create a conflict between guardians and educators. The questionx that we posed were: What does children's daytime napping looks like at preschool? How do the educators treat the parents regarding the length of time that the children are allowed to sleep during the naptime? What does the knowledge of children's sleep looks like? The method we have used to collect information is a survey; one for educators who are active with the preschool's youngest children and the other for guardians with children between one to three years old. During our study we have used phenomenographic theory and analytical methods; we have also had a social constructivist approach. The answers we received during our survey shows that there is a lack of knowledge about children's sleeping needs among many of the educators and guardians. Knowledge varies and many people believe that they know what is best for the individual child, which we will explore in our analysis and results section.