Hi, My girlfriend and I have been sleeping on a memory foam mattress for 5 years and are desperate to replace it with a more supportive one. The mattress now compresses so much when we get into bed that I feel we are not getting even support and we generally wake up either exhausted or with aches and pains. I'm 5' 10" and about 13 stone, and our budget places us in the Origins price range, so I was thinking of going for something like the Origin Pocket 1500, but wanted to check that this would be what you would recommend.Our current mattress feels much too soft so I'm guessing we would want a medium feel at least in our new mattress.