My DD (age 10) wanted a Tempurpedic mattress. Since that was out of the budget, we purchased a memory foam mattress topper at Costco. It is wonderful! Very comfortable. She loves it. It can be a bit of a pain when making up the bed- you'll need deep pocket sheets. But otherwise it is fantastic. Sorry, but I don't recall the brand name or price, but they still sell the exact same ones at Costco.