This study assessed a preventive intervention home visiting programme (Fussy Baby Network (FBN)) designed to support mothers struggling with infant crying, sleeping, or feeding concerns. Mothers were referred to the programme through local health- and social service providers and were eligible to participate in the study if they were age 18 or older and had a child [less than or equal to]12 months of age. A mixed methods design "quantitatively" assessed pre- to post-test changes in maternal mental health, parenting confidence, and parent-infant bonding and "qualitatively" explored mothers' experiences of the programme. Statistically significant differences were found with effect sizes (Cohen's D) as follows: improved parenting self-efficacy (0.72) and confidence (0.44); reduced maternal anxiety (0.50), stress (0.44), mother-infant bonding difficulties (0.42), and depression (0.35). Qualitative findings revealed that "Empathic Inquiry" and "Capacity Building," two core processes of the FBN model, emerged as the most salient themes of the programme.