What can I say apart from OMG? This matress is amazing, so comfortable and very tall. I love it. 
I always suffer with bad back and I throught I will get this mattres to see if it helps. We slept on it twice so far, and let me tell you - I am not longer waking up with a bad back. It must be due to our previous matress. 

My partner, on the other hand always feeling too warm, and each night he will opend up a window in our bedroom at night. For the last two nights he is absolutely fine and I don't have to freeze and more. He recons that the cooling effect of this matress is amazing and helps him sleep better. 

The matress came rolled up in the box, once put on the divan bed it expanded. It went massive! Much thicker than our old one. 
Delivery was two days earlier as well which was great. 

If you are thinking about spending a bit more money, please go for it! You will sleep so well and your back will thank you. Such a great matress to have.