Foam Mattreses

Memory foam mattreses are significantly more expensive than the average box spring and mattres, so you need to consider long and hard and do your research before making that committment. If it's at all possible, if you know anyone who has a memory foam mattres, then see if you can't try theirs out. At least lay on it for 15-30 minutes. Maybe you can even take a nap on their bed. :-)

If you do buy one, make sure the company you buy from offers a no hassle return policy and that the shipping costs to return it won't be outrageous. Tempur Pedic has a good return policy, but there are oodles of foam mattres retailers out there now.