mummy bag

American  

noun

1. a snug-fitting sleeping bag tapered from the shoulders to the feet, enclosing both the body and head except for a small opening for the face.

---

mummy bag British  

noun

1. a sleeping bag with a hood

---

Etymology

Origin of mummy bag

So called because its shape resembles a wrapped Egyptian mummy

Example Sentences

It was a good plan, but when I tried to actually get my arm out of the mummy bag, I flailed around like a fish out of water, and nearly dislocated my shoulder.

From "Looking for Alaska" by John Green

He added wood to the fire, wrapped himself in his Eddie Bauer mummy bag.

From The Tarn of Eternity by Tymon, Frank