Emergency Blanket
A pre-positioned blanket used to cover your feet when all other blankets fail to cover that area, usually due to tossing and turning.
Chaz: Dude, my feet were freezing in the middle of the night, last night!
Chester: Dude, that blows, luckily I had my Emergency Blanket!
Chester: Dude, that blows, luckily I had my Emergency Blanket!