Hello, I currently have a very cheap mattress that I bought last year due to it being so cheap and me needing something to just get by. It is a Silentnight roll mattress foam, and has served it's purpose very well. I've set out to find a new mattress as I've moved house and bought furniture, and my bed now is kingsize, as opposed to the double I used to have. I've visited a lot of stores just to try and gain an understanding of what is out there. Me and missus liked two mattresses so far, one from John Lewis, called the Natural Linen 4000, and the other is the Zen Rejuvenate from Dreams. However, having read most of your site (and thanks for the very informative stuff), I realized that the Zen Rejuvenate (for the price) is not very good quality, and the Natural Linen 4000, due to not being double sided would not last as much as double sided mattress. Now, I would like to have a bed that has natural materials, and I've been looking at your Artisan Naturals - Kingsize mattress. What would you say is a suitable spring tension for us, based on the mattress mentioned above and our weight?

I'm 160lbs (11.5 st) and my missus is 110lbs (8st). Thanks, Mike. >