Yes, I have, for both friends and myself. Following the advice of a wise mentor, I used two layer of Insulbrite with the reflective sides facing out. No batting in between. That way, one can use either side without worry. Admittedly, it is a little stiff to begin with, but with use and age, it becomes more supple. Personally, for me, I wouldn't be confident of its insulating ability with anything but Insulbrite.
Just my 2 cents.