We bought this topper to cover a high end memory foam mattress that just wasn't very comfortable on its own. After sleeping on it during the summer months, we are very happy with our purchase and would do so again in a heartbeat. I also purchased the down alternative euro top cover from Great Offer Stock at the same time. It fit perfectly and only took a couple of minutes to place the topper in it and zip it up Together it made the bed so comfy. It was well worth the money paid.