I've been wanting a memory foam topper for a long time but never got around to purchasing. I bought this one because of the gel specifically. My husband runs very hot and I didn't want us to both end up sweating to death and the gel foam seems to do the trick. It's SO comfortable to sleep on. It does come in 2 pieces, 1in of the gel foam and 2 of the regular. I put the gel on top and it zippers into a cover which was really nice. Very happy I got this.