Hi Bunny1999,
I would keep in mind that while other people’s comments about the knowledge and service of a particular business can certainly be very helpful … I would be very cautious about about using other people’s experiences or reviews on a mattress (either positive or negative) as a reliable source of information or guidance about how you will feel on the same mattress or how suitable or how durable a mattress may be for you and in many if not most cases they can be more misleading than helpful because any mattress that would be a perfect choice for one person or even a larger group of people may be completely unsuitable for someone else to sleep on (see post #13 here).
A mattress that works “perfectly” for one person’s back issues may be completely unsuitable to sleep on for someone else even if they seem to have similar back issues.
Phoenix