I've had a tempurpedic with the adjustable base for over 10 years. I absolutely love it. About 3 years ago my husband and I bought 2 twin extra long adjustable beds from Costco on line for our second home. They are made from memory foam and are very good... but they are not tempurpedic. They are not as soft and comfortable as the original. I no longer sleep well if I'm not on a memory form mattress.