Let me know what the diaper company tells you. I was thinking about using cloth wipes because i was a little nervous about disposables, but i didnt really want to cloth diaper.
I picked this mattress by Colgate
http://www.amazon.com/Colgate-Classica-Organic-Cotton-Mattress/dp/B004O6M4MI/ref=br_it_dp_o_nS_nC?ie=UTF8&colid=UVKDZ393JP4O&coliid=IZU6IX8WUVW7Z I think I picked a good one?
I read that britax eliminated flame retardants in 2013 for car seats and strollers.