TOPLINE:

Of the sudden unexpected infant deaths occurring in inclined sleepers, 50 occurred during 2020-2023 following the 2019 Consumer Product Safety Commission recalls of these devices. Nearly 30% of infants who died placed supine were found unresponsive in nonsupine positions, and 32% had airway obstruction, often from the sleeper material.

METHODOLOGY:

• Researchers analyzed 158 cases of sleep-related sudden unexpected infant deaths that occurred in inclined sleepers during 2009-2023, using data from the Pediatric National Fatality Review Case Reporting System in the US, compiled by multidisciplinary child death review teams.
• Sudden unexpected infant death was defined as the death of infants aged less than 1 year due to one of eight possible primary causes: external cause of injury (asphyxia, undetermined, or unknown), medical condition (sudden infant death syndrome, undetermined, or unknown), undetermined if injury or medical cause, or primary cause unknown.
• Cases were identified through multiple methods: incident sleep place indicated as rocking inclined sleeper (n = 108), text field searches for terms such as inclined sleeper, lounger, or rocker (n = 32), and narrative key term searches for incline, rock, hammock, or brand names (n = 18).
• Researchers calculated frequencies and proportions for infant demographics, incident features, and supervisor characteristics; other variables included the source of airway obstruction and the presence of additional soft bedding.

TAKEAWAY:

• Among the sudden unexpected infant deaths in inclined sleepers, 68% occurred during 2009-2019, and 32% occurred during 2020-2023 after the initial recalls in 2019; the highest single-year proportion was in 2018 (26%).
• Placement and discovery positions diverged: 85% of infants were placed supine, and 10% were placed in nonsupine positions; approximately 30% of infants placed supine to sleep were later discovered unresponsive in nonsupine positions.
• Airway status was reported as obstructed in 32% of infants; among them, 55% involved obstruction by the inclined sleeper’s material itself, and 35% by additional soft bedding.
• Notably, 86% of incidents occurred at the infant’s home, and 83% were under parental supervision.

IN PRACTICE:

“It is important that caregivers and infant supervisors are aware of recalls and of the AAP [American Academy of Pediatrics] safe sleep recommendations. Healthcare providers, home visitors, health insurers, and any other agency or organization that works with caregivers, families, and supervisors of infants should continue to share messages about safe sleep and product recalls. Organizations can also create and implement policies promoting safe infant sleep to improve consistent communication and behavior modeling with families,” the authors wrote.

SOURCE:

The study was led by Sasha Mintz, MPH, of the National Center for Fatality Review and Prevention at the Michigan Public Health Institute in Okemos, Michigan. It was published online on February 23, 2026, in Pediatrics.

LIMITATIONS:

This descriptive study lacked a control group and had insufficient statistical power to detect meaningful differences in deaths before and after the 2019 recall. Data in the Pediatric National Fatality Review Case Reporting System are retrospective and subject to availability, accuracy, and biases of primary sources. Since the rocking inclined sleeper was added as an incident sleep place option in 2011, deaths in inclined sleepers before that year may have been missed if text fields and narratives lacked sufficient detail.

DISCLOSURES:

The National Center is funded in part by a cooperative agreement with the US Department of Health and Human Services, Health Resources and Services Administration, and Maternal and Child Health Bureau. The authors reported having no conflicts of interest.

This article was created using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication.