Toxic Chemicals in Children’s Mattresses Found to Harm Brain Development

A recent study published by the University of Toronto in Environmental Science & Technology and Environmental Science & Technology Letters has revealed that children are exposed to toxic chemicals like phthalates, flame retardants, and UV-filters while sleeping on their mattresses. These chemicals can harm brain development, neurological problems, asthma, hormone disruption, and cancer.

The study measured chemical concentrations in 25 bedrooms of children aged 6 months to 4 years and detected concerning levels of these chemicals in the bedroom air, with the highest levels found near the beds. Another study tested 16 newly purchased children’s mattresses and confirmed that they are likely the major source of these chemicals in children’s sleeping environments.

The researchers suggest that parents should take action to reduce their child’s exposure to these toxins. This includes decluttering the child’s sleeping area, washing and refreshing bedding frequently, and choosing undyed or neutral-colored fabrics.

The study’s findings have significant implications for mattress manufacturers and policymakers. The researchers call for stronger regulations on the use of flame retardants and phthalate plasticizers in children’s mattresses and recommend extending restrictions on certain plasticizers from toys and objects to include mattresses and other bedding items.

According to senior author Miriam Diamond, “Sleep is vital for brain development, particularly for infants and toddlers. However, our research suggests that many mattresses contain chemicals that can harm kids’ brains.” The study’s authors also express concern that flame retardants have no proven fire-safety benefit and are linked to neurological, reproductive, and hormonal harm as well as cancer.

The study’s findings are a wake-up call for manufacturers and policymakers to ensure children’s beds are safe and support healthy brain development.

Source: https://medicalxpress.com/news/2025-04-children-exposed-brain-chemicals-scientists.html