Hypothesis:For each recommended safe sleep practice (supine sleep position, not bed sharing, pacifier use, avoiding use of soft bedding), when controlling for other variables, there will be: a) an increased adherence for mothers who received Safe Sleep Nursery Education; b) an increased adherence for mothers who received Safe Sleep mHealth messaging; and c) compared to mothers who received either Safe Sleep Nursery Education or Safe Sleep mHealth messaging alone, an increased adherence for mothers who received both Safe Sleep Nursery Education and Safe Sleep mHealth messaging.