According to Gram Research analysis, a 2026 randomized trial of 1,383 low-income families found that text messages with safe sleep videos did not significantly change how mothers actually put their babies to sleep. While 87-92% of mothers across all groups reported using back-sleeping positions, this high rate occurred equally in both intervention and control groups, suggesting that knowledge gaps aren’t the main barrier to safe sleep—practical obstacles like housing constraints and equipment access are.
Researchers tested whether sending short videos about safe sleep practices to low-income families through text messages would help babies sleep safer. They recruited nearly 1,800 pregnant women from WIC programs across 18 states and sent some of them educational videos before and after their babies were born. While most mothers already knew about safe sleep practices like putting babies on their backs, the text message reminders didn’t significantly improve how many families actually followed these practices. The study found one small benefit: mothers who received prenatal messages were slightly more likely to plan exclusive back-sleeping positions.
Key Statistics
A 2026 randomized controlled trial published in JAMA involving 1,383 low-income women found that text-delivered safe sleep videos did not significantly improve maternal adherence to safe sleep practices, with 87.6% to 92.2% of mothers reporting back-sleeping across all groups regardless of intervention.
Among 1,383 participants in the SMARTER trial, mothers who received prenatal text messages about safe sleep were 9.7% more likely to plan exclusive back-sleeping compared to controls (70.6% vs 60.9%), though this planned behavior didn’t translate to significantly higher actual practice rates.
In the 2026 SMARTER study of WIC participants across 18 states, 83.8% to 89.5% of mothers reported room-sharing without bed-sharing and 75.6% to 84.5% reported avoiding soft bedding, with no significant differences between groups receiving text message interventions and control groups.
The Quick Take
- What they studied: Whether sending short educational videos about safe baby sleep through text messages would help low-income families follow safe sleep recommendations
- Who participated: 1,383 pregnant women from WIC programs (a nutrition assistance program) across 18 states. About 59% were ages 24-34, and the group included 23% Black, 24% Hispanic, and 43% White participants
- Key finding: Text messages with safe sleep videos didn’t significantly change how mothers actually put their babies to sleep, though mothers who received prenatal messages were 9.7% more likely to plan exclusive back-sleeping
- What it means for you: Simply sending information through text messages isn’t enough to change parenting behaviors around safe sleep. Families may need more personalized support, in-person guidance, or addressing other barriers like lack of space or resources
The Research Details
This was a randomized controlled trial, which is considered one of the strongest types of research studies. Researchers recruited pregnant women from WIC programs and health centers in 18 states between May 2022 and December 2024. They randomly divided participants into four groups: some received text messages with safe sleep videos during pregnancy only, some during the first 60 days after birth only, some during both periods, and a control group that received videos about breastfeeding instead.
The researchers sent short educational videos through text messages at different times and measured whether mothers actually followed safe sleep practices. They asked mothers about four main sleep practices: putting babies on their backs, keeping babies in the parents’ room without bed-sharing, avoiding soft bedding, and using pacifiers. They collected this information at 60 or more days after birth, which is when sudden unexpected infant death risk is highest.
About 77% of the original participants completed the study and were included in the final analysis. The study was unblinded, meaning participants knew whether they were receiving the intervention videos or control videos, which could potentially influence their responses.
This research approach is important because it tests whether a low-cost, scalable intervention (text messages) could improve safe sleep practices in families who face the most barriers to healthcare information. Low-income families have higher rates of sudden unexpected infant death, so finding effective ways to reach them is crucial. However, the study design also has limitations—knowing you’re in a study about safe sleep might change how people answer questions, and text messages alone may not be enough to overcome real-world barriers.
This study was published in JAMA, a highly respected medical journal, which indicates it met rigorous scientific standards. The sample size of 1,383 participants is reasonably large. However, the study was unblinded, meaning participants knew whether they received the intervention, which could bias their responses. The 77% completion rate is good but means 23% of participants dropped out. The study was conducted across 18 states with diverse participants, which makes the findings more generalizable to different populations.
What the Results Show
The main finding was disappointing for researchers: text messages with safe sleep videos did not significantly change how mothers actually practiced safe sleep. Between 87.6% and 92.2% of mothers across all groups reported putting their babies on their backs to sleep—which is already quite high. Similarly, 83.8% to 89.5% reported room-sharing without bed-sharing, 75.6% to 84.5% avoided soft bedding, and 72.5% to 76.0% used pacifiers. These percentages were essentially the same whether mothers received the text messages or not.
This suggests that by the time women are pregnant or have just given birth, most already know about safe sleep recommendations. The barrier to safe sleep isn’t lack of knowledge—it’s something else. Mothers may lack space in their homes for room-sharing, may not have access to appropriate cribs, may face cultural beliefs about sleep practices, or may struggle with other challenges that make following recommendations difficult.
The one positive finding was among secondary outcomes: mothers who received prenatal text messages were slightly more likely to plan exclusive back-sleeping (70.6% vs 60.9% in the control group). This 9.7% difference suggests that prenatal messaging might help with planning, even if it doesn’t change actual behavior after birth.
Among the seven secondary outcomes measured, only exclusive supine positioning showed a significant difference. Mothers who received prenatal intervention reported planning to put their babies exclusively on their backs at higher rates than controls. However, this planned behavior didn’t necessarily translate into actual practice at 60 days after birth. Other secondary outcomes, including exclusive room-sharing without bed-sharing and time-to-initial-report of unsafe practices, showed no significant differences between groups.
Previous research has shown that safe sleep education can work, but it typically requires more intensive, personalized approaches than simple text messages. This study aligns with growing evidence that knowledge alone doesn’t change behavior—especially for low-income families facing structural barriers. The findings suggest that future interventions need to address practical obstacles like housing constraints, access to safe sleep equipment, and cultural factors, not just provide information.
Several important limitations affect how we interpret these results. First, the study relied on mothers self-reporting their behaviors, which may not be accurate—mothers might report what they think researchers want to hear rather than what they actually do. Second, the study was unblinded, so knowing they were in a safe sleep study might have made all participants more conscious of safe sleep practices, reducing differences between groups. Third, the high baseline knowledge and practice rates suggest this population already understood safe sleep recommendations, so there was limited room for improvement. Fourth, the study didn’t measure or address practical barriers like housing space, access to cribs, or cultural beliefs that might prevent families from following recommendations. Finally, 23% of participants dropped out, which could bias results if those who left were systematically different from those who stayed.
The Bottom Line
Based on this research, text message reminders alone are not sufficient to improve safe sleep practices. Healthcare providers should focus on identifying and addressing the real barriers families face—such as lack of safe sleep equipment, inadequate housing, or cultural beliefs. For low-income families specifically, interventions might include providing free or subsidized cribs, offering in-person education and support, and addressing housing issues. Prenatal education may help with planning, so including safe sleep discussions in prenatal care remains important, but it should be combined with practical support and follow-up.
Healthcare providers, WIC programs, and public health officials should care about these findings because they suggest current text-based approaches need improvement. Low-income families should know that safe sleep information alone isn’t enough—they should ask their healthcare providers about practical resources like free cribs or safe sleep equipment. Policymakers should consider funding programs that address structural barriers to safe sleep, not just educational campaigns.
This study measured outcomes at 60 days after birth, so any changes from the intervention would have appeared within that timeframe. The lack of significant changes at 60 days suggests that text messages don’t produce quick behavioral shifts. If families do change their practices, it would likely require ongoing support beyond the 60-day period measured in this study.
Frequently Asked Questions
Do text messages about safe sleep actually help parents follow safe sleep guidelines?
According to a 2026 trial of 1,383 low-income families, text messages with safe sleep videos did not significantly change actual sleep practices. Most mothers already knew about safe sleep recommendations; the barriers are practical obstacles like housing space and equipment access, not lack of information.
What percentage of low-income mothers already know about putting babies on their backs to sleep?
The 2026 SMARTER study found that 87.6% to 92.2% of low-income mothers reported using back-sleeping positions across all groups, indicating very high baseline knowledge. This suggests education campaigns should focus on removing practical barriers instead.
Can prenatal safe sleep education help families plan safer sleep practices?
Yes, slightly. Mothers who received prenatal text messages were 9.7% more likely to plan exclusive back-sleeping (70.6% vs 60.9%). However, this planning advantage didn’t translate into significantly higher actual practice rates after birth, suggesting planning alone isn’t enough.
What barriers prevent low-income families from following safe sleep recommendations?
The 2026 SMARTER trial didn’t measure specific barriers, but the high baseline knowledge combined with unchanged behavior suggests obstacles include inadequate housing space, lack of access to safe sleep equipment like cribs, cultural beliefs about sleep practices, and other structural challenges beyond education.
Should healthcare providers stop giving safe sleep education to pregnant women?
No. The study shows prenatal education helps with planning intentions. However, providers should combine education with practical support—offering free cribs, addressing housing issues, and providing culturally-tailored counseling rather than relying on information alone.
Want to Apply This Research?
- Track actual sleep position daily for one week each month using a simple checklist: ‘Back position,’ ‘Side position,’ ‘Stomach position,’ and ‘Room-sharing without bed-sharing.’ This creates accountability and reveals patterns that self-reported surveys might miss.
- Instead of just receiving information, users could set up a weekly check-in reminder that asks: ‘What’s one barrier to safe sleep you faced this week?’ This shifts focus from knowledge to problem-solving, helping users identify and address real obstacles like lack of space or equipment.
- Create a ‘Safe Sleep Barriers’ tracker where users log practical obstacles they encounter (housing space, equipment access, family pressure, etc.) rather than just tracking compliance. This data helps identify which families need equipment support, housing assistance, or culturally-tailored counseling rather than more information.
This research shows that text message interventions alone don’t significantly change safe sleep practices, but safe sleep recommendations remain important for reducing the risk of sudden unexpected infant death. Consult with your pediatrician or healthcare provider about safe sleep practices for your specific situation, as they can address your individual barriers and provide personalized guidance. This article summarizes research findings and should not replace professional medical advice. If you have concerns about your infant’s sleep safety, contact your healthcare provider immediately.
This research translation is published by Gram Research, the science division of Gram, an AI-powered nutrition tracking app.