After Cecile Langelier started experiencing sleep-depriving aches from her new gardening ventures at home in Corning, Calif., last year, she and her partner Dennis Nelson decided the best balm might be a better mattress. Little did they know it would be made out of natural latex. "There was a support and softness that can only be described as being in my mother's arms," says Langelier, a former organizational-development consultant. "It was like lying down on a cloud."
The cost of this piece of paradise--a king-size mattress manufactured by Vivètique under its Natural Bedroom brand, which the couple bought last fall in...