it may be that way on purpose, ES. some areas of your body require more heat than others..
i did however find the footbox area to be pretty slim on fill. considering they claim a 20° rating, how so when the footbox lofts to a mere 1"??
all i can say is im on the fence about the quality of this item. im just glad i did not pay the full retail price. then again, i have my diy kick *** quilts to compare it to, so its no contest.