flea bag

I do hope that flea bag's for sale.

"I wonder how long we'll have to sit in this flea bag?"

My first few nights in that hut were cold and unhappy, for I slept on the floor in a “flea bag.”

It was no common thing to wake up in the mornings and find icicles on the top blanket of the "flea bag" where one's breath had frozen, and of course one's sponge was a solid block of ice.

But none of the horrors she depicted ever persuaded me to turn out once I was safely tucked up in my "flea bag" with "Tuppence" acting as a weight to keep the top blankets in place.