This article examines research that calls into question the soundness of current definitions of problematic infant sleep. Current research suggests that infant night wakings and signaling behaviors may be normative. Research is inconclusive on whether early sleep problems are predictive of later sleep problems. The article also describes research data on differences in how practitioners and parents identify sleep problems. Factors that influence parents' perceptions include whether or not they consider night wakings to be normative, their expectations of infant sleep patterns, and their socialization goals. The author suggests that practitioners need to shift the focus of infant sleep problems from a lack of independent sleep behavior to criteria that consider the variability in infant sleep patterns and families' sleep goals. Practitioners could then address infant sleep patterns by determining the best match for families' needs and infants' development. Important factors to consider include maternal and infant characteristics, parental presence, and shared sleep arrangements.