..for your advise...
I finally bought a vi-spring, it took me months to decide about which bed to buy because I first had to accept that beds are as expensive as cars, We do not need a car so we just gave in :-)
And for the bedlinen, I found at the Connaught Hotel in London very nice sheets, italian of course: pradesi is the label.
Nevertheless, we still have french vintage linen as well it never gets used as it is 100% linen at not cotton ;-)
Good night