I don't even understand why word of mouth would even be a thing when it comes to mattresses. People sleep differently and have different preferences when it com

I don't even understand why word of mouth would even be a thing when it comes to mattresses. People sleep differently and have different preferences when it comes to what they sleep on such that I can't see buying a mattress without first lying on it for a while. I recently bought one of the newish high-tech foam brands (not saying which one so no one accuses me of shilling), but only after going into one of their showrooms and spending a couple of hours testing out the various options. The only thing I looked at reviews to determine was what the return process was like, and for that you really need to look for user-generated content sites like Yelp rather than people with their own review sites since the return process for a demo model won't be representative.