I live in San Francisco and I'm selling my king size foam mattress. It would be perfect for someone building a woody that needs padding. You could also try to use it as a highball crashpad if you add a thin layer of stiff foam on top, but it is 70 lbs. You could also try cutting it into multiple smaller pads. I can deliver it if you're not too far away from SF. Send me a message if you are interested!