[georgesimon]

Depends on which part of the UK. In Northern Ireland you can still get delivery and installation of a Respa bed and mattress-for-life, plus collection and recycling of old mattress all for easily under £1000. I think they're sold under the Silentnight brand in GB[0].

Why do you want all(?) natural materials, that doesn't sound hygienic for something you want to have for more than 10 years?

[0] Not all Silentnight would be Respa though, as far as I know.