When we were expecting, we did a ton of research on crib mattresses. While we were very happy with our Gulliver crib from Ikea at $99, we decided we could splurge on an "organic" mattress. But we have to agree with the NY Times: deciphering which mattress is actually free of harmful chemicals is a challenging task.
Some of the things to consider when looking at mattresses:
• the materials the mattress is made of: even natural materials like cotton and wool are grown with insecticides/pesticides.
• the filling: Many mattresses are filled with polyurethane foam and treated with flame retardant chemicals.
• the mattress covering: The cover for crib mattresses especially is often made of vinyl containing phthalates.
Read the NY Times article here, and tell us your own findings/choices for a healthy crib mattress.