I didn't use anything, the best that I could figure was that the quilts kept it insulated enough. Now it wasn't real hot in the morning, but it still kept my hands warm.
Psalm 19:1-3 "The heavens declare the glory of God; and the firmament sheweth his handywork. Day unto day uttereth speech, and night unto night sheweth knowledge. There is no speech nor language, where their voice is not heard."