Pick up on August 25th or 24th in Palo Alto for only 50$. I always used a mattress protector on top of the mattress. now it is nice and clean. Original price is ~400$.
For more details:
https://www.amazon.com/Sleep-Innovations-SureTemp-Mattress-Warranty/dp/B003CT37HE/ref=sr_1_3?ie=UTF8&qid=1387011805&sr=8-3&keywords=innovation+memory+foam+mattress+8