A novaform elite memory foam mattress topper is a two inch topper for any regular mattress. While it does not provide the support of a whole memory foam mattress it is a great start. A Twin mattress size- 35"x72"x2," sells at a price of $74.99; a Full mattress size- 54"x72"x2" sells at a price of $94.99, a Memory Foam Queen Mattress size- 60"x80"x2" sells at a price of $109.99, and a Memory Foam King Mattress size 76"x80"x2" sells at a price of $132.99.