feather bed
featherbed

A huge feather bed seemed to fill the small space.

A feather bed should not be used under any circumstances.

"I never thought a courier's job was the feather bed some people make it out to be."

There was green grass to sleep on, soft as any feather bed.

"And how do you like sleeping in a nice feather bed?"

I've always wanted to see what a feather bed was like.

She used to have me in a big feather bed with her.

"Would you like to go to sleep in a big feather bed, all nice and warm?"

And, if we do fall, it will be like landing in a feather bed!

"Just like jumping off of and back into a feather bed!"