If so, I vote don't overthink it. If it seems like a good deal, then give it a try. If you don't like it, it isn't a decision you have to live with for ten years.

Mattress shopping these days is MUCH better than in the days of yore. Most of the mattresses that come in a box these days will give you about three months (or more) to try them out. You may lose the shipping charges to return it, but that's it.

I say use their free trials until you find something you like.