I wanted a mattress to replace a sleep number bed. After doing research on line and talking with the manager in Exton, I decided on The Mattress Factory. I bought a Serta Perfect Sleeper Cooper Lakes Plush Pillow Top. The process was uncomplicated, the delivery date was met as promised, and the price, after sales, was more reasonable than I had originally planned. This mattress exceeded my expectations and is very comfortable. I highly recommend this store.