In this pilot study, the efficacy and feasibility of the Baby Triple P parenting training is investigated in a pilot study using a randomized controlled trial. According to the efficacy of the parenting training, it is expected that parents in the training condition show higher scores on mental health scales (BSI-18) and quality of Partnership (PFB). Furthermore, it is expected that infants whose parents has taken part in the parenting training have lower severity ratings of regulatory disorders assessed with the Baby-DIPS diagnostic interview than infants of parents in the care as usual control condition.