In the present study, linkages were examined between parental behaviors (maternal practices) at bedtime, emotional availability of mothering at bedtime, and infant sleep quality in a cross-sectional sample of families with infants between 1 and 24 months of age. Observations of maternal behaviors and maternal emotional availability were conducted independently by 2 sets of trained observers who were blind to data being coded by the other. With infant age statistically controlled, specific maternal behaviors at bedtime were unrelated to infant sleep disruptions at bedtime and during the night. By contrast, emotional availability of mothering at bedtime was significantly and inversely related to infant sleep disruption, and, although these links were stronger for younger infants, they were significant for older infants as well. Maternal emotional availability was also inversely linked with mothers' ratings of whether their infants had sleep difficulties. These findings demonstrate that parents' emotional availability at bedtimes may be as important, if not more important, than bedtime practices in predicting infant sleep quality. Results support the theoretical premise that parents' emotional availability to children in sleep contexts promotes feelings of safety and security and, as a result, better-regulated child sleep.

Among the many decisions that parents make regarding child-rearing practices, an important one involves sleep arrangements. Little is known about the relationship between chosen sleep arrangements, parents' adaptation to these choices, parental sleep quality, spousal support, and parental distress. Forty-five mothers and fathers with infants 1 to 24 months old completed measures of parental attitudes and practices regarding sleep arrangements. Shared sleep with one's infant was associated with poorer parental adaptation to infant sleep disruption, and this was true even when parents endorsed the practice of sharing sleep with their infants. Among mothers, shared sleep and poorer adaptation to infant sleep were significantly associated with elevated depressive symptoms, poorer sleep quality, and spousal criticism directed to mothers about where the infant slept during the night. For mothers, criticism from their spouses about where the baby slept, mothers' sleep quality, and depressive symptoms mediated the link between sleep arrangements and maternal adaptation. Results emphasize the importance of taking into account individual differences in the quality of parents' adaptation to infant sleep behavior, a construct largely ignored in the child sleep literature to date, in understanding linkages between infant sleep quality and infant-parent outcomes.