Now that I've slept on this for a week, I thought I'd update my review. The pad, itself, is fantastic -- 5 stars. SO comfortable. It turns an average bed into a luxurious one. At first, I also loved the cover. It appears to be made of a thinner version of their pillow covers, which are heavenly. And it felt great sleeping on this cover for the first few days. But, it turns out it's not very durable. It's pilling up all over the place -- little snags where bits of the cloth clump up into little pills. I wasn't going to use a fitted sheet because this cover is like a luxurious fitted sheet. But, now I'm going to have to. The pilling is not only unsightly, it's getting a bit uncomfortable.

To be honest, I was only expecting a minor improvement, but I was wrong. It's a massive improvement. I put this on a pretty decent bed -- no sagging, not terribly uncomfortable, but nothing that great. And when I laid down on it, I thought I was on a top of the line luxury mattress. And I got a wonderful sleep. I was joking in the morning, "Help! I've laid down on a Coop and I can't get up!" I'm very happy with my purchase.

Love this topper! Recently got a new mattress which we are loving but it was lacking a little plush! This addition makes my bed feel like a cloud

Great!!! At first I was skeptic of all the good reviews, but since I could return it I took a chance and bought one (King size). My husband and I couldn't believe the difference. It REALLY helped with our back, hip and leg pain. Amazingly so. We're sold. Only problem I had is that I'm short (5') and we have a deep pocket king to begin with, so I need a little extra leg up to now get on the bed that is 4" higher. Still doable, and I wouldn't trade the mattress topper for anything. Hint for buyers: Buy some really deep pocket sheets for 14" plus if you have a deep pocket mattress to begin with. Worth it!

I love the Coop mattress topper. I now sleep all night long and wake up in the morning without any soreness or pain.