We bought a VI-Spring mattress last year. Part of the conditions of the satisfaction guarantee is that you have to have certification that you lay on the appro

We bought a VI-Spring mattress last year. Part of the conditions of the satisfaction guarantee is that you have to have certification that you lay on the appropriate demonstration mattress for at least 30 minutes. I don't see that listed here but it's in our hard-copy, and the retailer emphasised it before purchase: http://www.vispring.com/our-promises/guaranteed http://www.vispring.com/our-promises/guaranteed