Galbally M, et al. - Researchers focussed on perinatal depression and infant sleep problems, a common concerns in many communities, to explore the relationship between the antidepressant treatment exposure for perinatal maternal depression and infant sleep. They drew this study on four waves of data (first and third trimesters, and six and 12 months postpartum) from 264 women in the Mercy Pregnancy and Emotional Wellbeing Study, a prospective pregnancy cohort study of women recruited in first trimester in Melbourne, Australia. Findings revealed that maternal depression and antidepressant use were not significant factors in infant sleep problems, thereby suggesting no association of infant sleep problems with maternal depression. However, postpartum maternal cognitions around six months postpartum regarding limit-setting at night could be predictive of increases in later nocturnal infant signaling.