We had purchase the mattress to replace our current air mattress system. We highly advise "against" the use of an air mattress system. Never again. We did not want to use innerspring or waterbed options. We have looked into memory foam mattresses in stores but was taken aback by the $3000 price tag. Hard to look away from the values offered at Overstock. So we decided to try out the Overstock option. We were a bit concerned about a mail order/ sight unseen purchase. We are very happy with our purchase and we are sleeping very well on this new mattress. My wife and I both noticed we no longer get out of bed and hobble like we are crippled when we started to walk. My concern was that I would to too hot on it. That has not been an issue. We do use a pillow-top mattress cover so that may be a factor in comfort. Also it is very cozy on the winter nights. Somehow the memory foam keeps you body temps very well. Neither hot or cold. I have already highly recommended your product to my friends and have told them of our complete confidence in buying from Overstock. We most definitely will be making future purchases again through them. Thank you for a great product and great service. The shipping was quick. Very satisfying consumer experience!!!