The Ikea mattress is the Hasvag model. It was purchased one year ago and is still clean. The mattress also comes with a mattress cover (Grusnarv) that I would wash for you before you pick it up. The reason why it is for free is that I got a bigger mattress for my new place and really need to get rid of this one which is currently in my living room. Available for pick up anytime in Mountain View, preferably in the evenings (after 5PM) or weekend, but negotiable.