In mattress set for polyurethane foam provides the mattress (which contains the support foam underneath the foam) and polyurethane foam pillows (usually two). The polyurethane foam mattress set will ordinarily cost you a tad bit more than just an ordinary mattress or a mattress topper.
You can look at to find much about this particular sort of mattress set or you can try to find each piece separately and attempt to get a hold of good prices on those individual pieces. Online you can find a great deal of sales so your most useful wager might be to try to purchase each piece independently. However, if you want to purchase them at one time because you viewed the prices for each individual piece and they were equal or higher towards the cost of the ready then you definitely should be aware things to look out for in a good foam mattress set.