Boni, it wasn't me but I have a 8 to 10 YO Queen size Simmons Beautirest. It has served us well. I think the new ones are no flip which is great since these mattresses weigh a ton. It does show our body indentations and I guess it's getting to the age where we need to start thinking about replacing it ... newer mattresses come with a 10 year warranty.
When it comes time to replace it, I thought about a Tempurpedic but I'm a stomach sleeper and I would think being contoured to one position then switching would be annoying. I also thought about the dial in mattress (Lindsey Wagner) but read bad reviews about it leaking .
When we bought ours I wanted a really hard mattress, I was younger and could sleep on a rock! I've also been thinking about a pillowtop when we get a new one.