Originally Posted by Beast 71
I use my JRB Mount Wash. 3 convertible all by itself until the temps. get into the single digits, then I throw in my Therm*A*Rest pad. I've been warm to -11F.
As you can see from responses/experiences like this, you will not need a pad if you use an UQ. UNLESS you exceed the capabilities of the UQ. Or unless you develop some fit problem with your UQ even within it's normal ratings, or are unable to block the wind or you get your quilt wet. And finally, I think finally, you are forced to ground. Oh, nope, another: if you need it for your legs with a short UQ.
So a pad is a lot of insurance, especially considering you may already need it for a sit pad. But, no, you will not normally need a pad if you have an UQ.