By Wesley Vaughn What are innerspring coils made of? “Steel,” we say. Other options are: Stainless steel, titanium steel, titanium alloy, or some other metal alloy. That is it! Or it was—until now. Among the new mattress companies at the Winter Las Vegas Market in January 2014 is VitalWOOD USA, the U.S. distributor for VitalWOOD, a division of Hungarian manufacturer Bio-Textima. This family-owned firm developed the wooden coil as an alternative to metal springs, releasing it...
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