The best investment I made to my sleep
Yes this is not cheap, but it has made my sleep much better. I wake up with less pain, and I don't get as hot. I feel like I fall asleep faster with this. I got the portable one because I might end up moving soon, and I might even travel with it. I am 5'8", and and I could even live with a smaller width, like the Ritz Paris (or whatever) model that they also have, but this one is a bit thicker and it's around the same price. But for frequent traveler, maybe the other portable one is better.