CAN SOMEONE PLEASE ADVISE WHERE TO BUY A MATTRESS THAT IS CHEMICAL FREE. I TRIED THE ORGANIC MATTRESS AND WAS ALLERGIC. I AM LOOKING FOR SOMETHING THAT IS ALL COTTON AND WASHED. ALLERGIC TO POLYESTER, WOOL, LATEX AND ORGANIC UNWASHED MATERIAL. (MUST BE THE OILS IN THE COTTON THAT CAUSED ALLERGY)