Inspired by Lowells post, I thought I wouldn't hijack that thread and ask my question here...

Does anyone have any good recommendations for lightweight mattress pad with thermal protection from cold ground? Even though I'm only 28, long gone are the days where I can roll out a sleeping on a tent floor ane not be in pain the next day.

This would be a great spot for anyone else to let us know their lightweight camping products they've had success with.