Babies, Kids’ Mattresses Found to Emit Brain-Harming Chemicals, Raising Health Concerns: Canadian Study

A new set of studies from Canadian researchers has raised alarms about the safety of mattresses used by babies and young children, revealing that these everyday items may be a significant source of exposure to chemicals linked to brain and developmental harm.

The research, led by Professor Miriam Diamond at the University of Toronto, found that children’s mattresses and bedding can emit a range of potentially toxic substances—including phthalates, flame retardants, and UV filters—into the air. These chemicals are associated with neurological and reproductive problems, asthma, hormone disruption, and even cancer.

Key Findings from the Studies

• In the first study, air quality was measured in 25 bedrooms of children aged 6 months to 4 years. Researchers detected concerning concentrations of more than two dozen phthalates, flame retardants, and UV filters, with the highest levels found near the beds.

• A companion study tested 16 newly purchased children’s mattresses and confirmed that these products are likely the major source of these chemicals in children’s sleeping environments1.

• Simulating a child’s body temperature and weight, researchers found that chemical emissions from the mattresses increased substantially—sometimes by several times—when a child was lying on them.

Health Risks and Vulnerability

Phthalates, commonly used as plasticizers, and organophosphate ester flame retardants were among the chemicals detected. These substances are known hormone disruptors and have been linked to neurological harms such as learning disorders, reduced IQ, behavioral problems, and impaired memory. Some are also associated with childhood asthma and cancer.

Children are particularly vulnerable to these exposures because:

• They breathe at rates up to ten times higher than adults.

• Their skin is more permeable and has a greater surface area relative to body weight.

• They spend more time sleeping, often up to 18 hours a day for infants, increasing their exposure window.

Regulatory and Industry Response

Despite regulations in Canada and the U.S. restricting certain chemicals in children’s products, the studies found that some mattresses still contained prohibited substances, including carcinogenic flame retardants, even when labeled as compliant. Researchers and health advocates are calling for stricter oversight and more rigorous testing by manufacturers to ensure children’s safety.

Advice for Parents

While the burden should not fall on parents, experts recommend several steps to help reduce children’s exposure:

• Use neutral-colored bedding and avoid brightly colored sheets, which may contain additional UV filters.

• Wash bedding and bed clothing frequently to act as a protective barrier.

• Declutter sleeping areas by reducing the number of pillows, blankets, and toys.

• Consider mattresses made from natural materials like latex, cotton, or wool, and allow new mattresses to air out before use.

A Call to Action

“This is a wake-up call for manufacturers and policymakers to ensure our children’s beds are safe and support healthy brain development,” said Professor Diamond. The studies underscore the need for updated regulations and greater transparency in the materials used in children’s products.

Disclaimer: This article summarizes findings from recent scientific studies. The information provided is for general awareness and should not be considered medical advice. For specific health concerns, consult a qualified healthcare professional.