Children's nighttime fears, such as monsters in the closet, have been a common issue for the American. In children's cognitive development, vivid imagination has been recognized as a cause of fear, but not all children around the globe share this common experience. This qualitative, exploratory study examined the relationship between parent-child sleeping practices and the nighttime fears of preschool children in a cross-cultural sample of 26 families. Interviews were conducted with 10 European-American and 16 Asian-American families. Asian-American families (94%) were more likely to report parent-child co-sleeping arrangements than were European-American families (10%). Results indicated that children from families that practiced parent-child co-sleeping had significantly fewer occurrences of nighttime fear. It is recommended that practitioners recognize the cultural construction of sleeping practices and that researchers examine the psychological impact of co-sleeping on young children.