You mean that they let you sleep, 4uck and whatever on it for a year, then you say you don't like it.............have it back. I think not.
But HOW do you choose one if you cannot 'try it out' for say a month.
I paid 30,000 12 years ago and it's still going strong, They do recommend changing after 8 years, and yet there are ads on UK TV for mattresses with a 12 or 16 year warranty. Hmmmmmmmmmmm.