Bamboo yarn fabrics are 100% natural and have significant advantages over conventional cotton, wool or silk fabrics.  Bamboo yarn has twice the tensile strength of cotton and evaporates moisture 50% faster.  This makes for a dryer and cooler surface.  Bamboo fabrics are completely anti-microbial, that is, dust mites, mold and mildew cannot live in it; also the fabric acts as a natural deodorant. 

Bamboo fabrics carry a negative ion static electric charge.  Your body builds up a positive charge throughout the day in your joints and muscles.  This can lead to general restlessness, an inability to relax, the need "to just move" and has even been linked to RLS (Restless Leg Syndrome) in some people.  The negative charge in the bamboo helps to cancel out the positive charge built up in the body.  This is clinically proven to increase the ability to rest.