Rocha Fernandes Furniture, 2018-01-07 02:44:05. They are Organic and Natural. Did you know a quarter of the worlds pesticides are used for cotton crops? To make just one T-shirt, a quarter of a pound of pesticides are used. Thats why choosing organic makes a massive difference for our health and environment. Natural memory foam mattresses are made using organic fabrics. When selecting your mattress, make sure your mattress is organic all the way through from top, fill and back. Choose unbleached organic cotton with organic fill and organic dyes and steer clear of harsh chemically treated fabrics.