well i have heard of that company too. Actually the method of selling that they adopt is sort of hard-selling, multi-level marketing approach through establishing of networks with people. It might seem similar to the pyramid scheme but is not cos multi-level marketing is accepted in Spore...while as we all know, pyramid scheme is not.
Yes i do agree that their selling approach can be very annoying as i also have an ex-classmate in there. i guess what u have to do is set your point straight to their salesforce that u are really not interested in buying the product, and there is no way u can accept paying an exorbitant price for a mattress that u don't think much of. Stand firm and there is no way any one can part you from your hard earn savings.
cheer up