Pros: Memory foam, light weight, durable, price, no noticeable smell, fits well with Queen size sheets Cons: Mattress cover is not; washable, water resistant, or removable if you want to keep the Serta warranty valid. 72 hours is takes for the mattress to reshape itself. Review: I highly recommend this product for anyone was has back problems. I used to wake up every night with back pains from sleeping on my side or on my stomach. Since purchasing this product I have yet to wake with any signs of back problems. I didn't know just how much sleep I was losing using a spring mattress until using this product. I now can sleep through the entire night and wake up without any back pains.