Any recommendations for a decent firm king size mattress for dh & myself please. DH is 6'2" & weighs about 15 1/2 stone & I'm 5'2" (almost!) & weigh just over 9 stone so anything vaguely soft is like a waterbed whenever dh rolls over in the night. Our current mattress was £1000 about 14 years ago (ha before kids!) & has seen a fair bit of action, not least 2 children conceived on it, and all the action of a different sort that goes with 2 v active ds' s. So it now seems the time has come to replace it. I think I might be getting a bit of an old fart but I'm quite liking the idea of 2 mattresses zipped together as we have a down mattress topper to make any join invisible but I'd not be affected by the great silver back moving around in the night. Any top tips? We don't like those tempura memory foam ones as they seem to boil your blood during the night. :-)