well to be honest, i've never been cold a night in my life when camping except one night i somehow unzipped my bag and it got stuck down...

and i've never owned a sleeping pad until now, and havent tried it out yet. so i have a feeling that this pad wll help, but i dont plan on being cold with or without it.
I camped atop mount mitchell last year and the last temp the guys in the site next to us saw as 8* at about 11PM.