Update 5/29/21- Wow, almost 8 years later and we are just about ready to replace this wonderful topper! We’re mattress shopping again, and this topper has seen us through all of these years with no issues. The only reason I want to replace it is because it’s quite stained from all these years of using by without a mattress pad. I didn’t want to risk taking away the benefit of the temp regulation by covering it with a poly mattress pad so I left it. Otherwise it’s fine. I’m finding after trying two mattresses in a box (Tuft and Needle Original and Happsy) that all mattresses now feel quite firm after sleeping on this for so long. I can’t be without it. Paired with a wool comforter and you can’t beat it for temperature regulation! Worth every penny!Original 2013 Review:Ever since giving birth to my son last year, I wake up often in the night soaked in sweat. I have tried closing the heat registers in our bedroom, using fans, and I've tried different comforters (down and polyester). Nothing has worked. Then, we recently decided to upgrade our queen mattress to a king, and we got a Simmons Beautyrest with a foam topper. Bad idea. Baaaaad. I was waking up every night drenched. Between that and the huge crater I'd find myself in when I woke up, I decided I hated memory foam. But the mattress can't be returned so I decided to try this. Wow. It helps with the feeling of sinking down into the mattress and makes the bed so soft! It does help to keep me cooler, although I still sweat under our down comforter. I ordered a wool comforter today that should take care of that problem. But really, such luxury!I do occasionally smell the wool smell, but it doesn't bother me. I had purchased a Snugglewool blanket for my son when he was born and had to sell it because I could not stand the smell. This does not come close to smelling as strong as that blanket did. It comes in a nice organic cotton bag and the cover itself is so soft and smooth. Really, it's a perfect solution.Pricey, but worth it to solve my sleep issues.