BlueBelle
Concerns about Volatile Organic Compounds (VOCs) .
These chemicals have a high vapor pressure at room temperature, meaning they can easily evaporate into the air. They are emitted from various materials, including many synthetic materials used in mattresses.
Many traditional infant and children's synthetic cot mattresses include things such as polyurethane foam and are coated in flame retardants containing PBDEs, organophosphate esters, and TCEP - all linked to serious health problems.
These include:
* Neurological impairments (e.g., learning disorders, reduced IQ, behavioral problems)
* Hormone disruption (endocrine disruptors)
* Reproductive issues
* Cancer
* Childhood asthma
(Some are even banned in other children's products (like toys) but may still be found in mattresses).
Phthalates
These are plasticizers and are often used to make materials like PVC (polyvinyl chloride) flexible and waterproof. They are endocrine disruptors and have been linked to:
* Genital defects in baby boys
* Lower testosterone and sperm counts
* Early puberty
* Reproductive challenges
* Increased risk of obesity and asthma
* Some phthalates are also banned in children's toys but not in mattresses.
Formaldehyde is a known human carcinogen, it can cause:
* Eye, nose, and throat irritation
* Coughing and wheezing
* Asthma flare-ups and respiratory inflammation
* Long-term or repeated exposure has been linked to respiratory tract cancers and leukemia.
PFAS (Per- and polyfluoroalkyl substances) are often used for waterproofing, these are "forever chemicals" that don't degrade in nature and have been linked to kidney cancer, lowered birth weights, and immune system effects.
Toxic adhesives can be used to bind mattress materials together.
Antimicrobials - whilst these are designed to kill or inhibit bacteria, viruses, or molds, they are generally not needed in mattresses.
Babies' bodies are still developing, making them more susceptible to the harmful effects of chemical exposure than adults. They also have a higher breathing rate taking in more air per pound of body weight than adults.
And of course they sleep a lot, often with their faces close to the mattress surface, leading to prolonged exposure.
Babies also have more permeable skin and a larger skin surface area relative to their body weight, increasing absorption of chemicals through skin.
I expect these are the things the mum is concerned about.