Although only the top 1 inch of this mattress topper is actually "memory foam" the rest is sponge like foam... it's still made my firm bed more comfortable. It was worth the affordable price I paid. Please keep in mind that this is a SHORT queen topper, I have a regular queen sized bed. It was short about 8-10 inches, which I was worried about when ordering it but once I put on the mattress protector and sheets it was not a problem. I used this for a guest room however I did purposely sleep on it a few nights to try it out. Not too hot when sleeping, pretty much the same as my more expensive memory gel foam topper, a little warmer but still comfortable. I would give it another star rating if they offered the regular queen sized, not just the short. I mean who really has a short queen bed??? Never heard of it, haha!