I purchased this mattress and had it delivered a couple of weeks ago now. Oh my god is it comfortable, I have not slept so well in years, it use to take me anywhere up to 2hrs to get comfortable e ough to sleep. Now I am asleep within 15minutes or so. Along with the cool gel pillow I purchased and this mattress I actually look forward to bed time.
Would highly recommended using the sleep tester bed in store and then trying various matresses it recommends.
The mattress and pillow were certainly not the cheapest, but my god it was worth it ,(in my opinion).