Do synthetic foam nursery mattresses release harmful VOCs that affect a baby's respiratory health?

What's actually in it

Synthetic nursery mattresses are often made from polyurethane soft foam. While this material is common, it is not stable. It breaks down over time through a process called autoxidation. This process releases volatile organic compounds (VOCs) directly into the air your baby breathes.

The primary chemicals released from these foams include formaldehyde, acetaldehyde, and acrolein. These are not just trace amounts. They are byproducts of the chemical structure of the foam itself as it reacts with the environment.

What the research says

A 2026 study in Polymers (Basel) confirmed that polyurethane soft foams act as a source for these harmful gases. The research shows that the formation of formaldehyde, acetaldehyde, and acrolein is a natural result of how these foams age and react.

Exposure to these types of chemicals is a known concern for respiratory health. While we often focus on air quality in the kitchen, the same principles apply to the nursery. Peer-reviewed research, such as a 2026 study in J Public Health (Oxf), highlights the clear link between indoor air pollutants and respiratory issues. When your baby spends hours sleeping on a mattress that is actively off-gassing these compounds, they are breathing them in consistently.