Hi John and Ryan Thanks for your response. I was referring to your article you hyperlinked - the sentence re the memory foam will need replacing but the pocket springs will still be okay to continue. The Hestia v2150 mattress we saw was £649 for double and the hestia v3000 was £699. I was looking at your origins 2000 pocket latex mattress. One for the pocket springs, two for the latex topper (which your sites advises is a better topper material than memory foam for longevity) and three because when we tried them in the shop my husband steered away from any mattress which didn't have a topper. I think we are okay with a double as we tend to sleep close together. I guess for us the important thing then is the weight difference and his back. When we tried non topper mattress's he found they hurt his back. would you still recommend your artisans naturals over the origins?

I'm not sure about getting a split medium/firm - i think i prefer slightly firmer feel than my husband did in the shop, so not sure if this would work for us?

Kind regards Heidi .