<http://schema.org/about>
"When it comes to buying a new mattress, there's lots to consider. Here's what you should know about the thing you spend one-third of your life on."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/health/healthy-spaces/stories/6-mattress-questions-ask-before-you-buy>