Tempur Cloud equivalent?

Wow - what a helpful post. Can you help me at all?

We have just bought a new bedframe, and need to buy a new mattress, i'd LOVE a Tempur cloud, really into trying out memory foam but we may move in a couple of years and may need a king size which we don't have room for now so at the moment we want to spend upto £500 - £600 on a similar kind of mattress. I am 5"3 and weigh between 9 to 9.5 stone and my partner is 6"1 and weighs maybe 11 stone. I laid on an Icon Miracoil 6 superiar and liked the feel of that (but not sure on quality) and we are going to look in Dreams tonight. Thank you :-) .