Yes, the bedposts were his own, the bed was his own, the room was his own.
8 seconds sound clip from the The Muppet Christmas Carol movie soundboard.
You can hear this line at 01:12:02 in the Blu-ray version of the movie.
Quote context
[...]
- I will live my life in the past, the present, and the future.
- I will not shut out the lessons the spirits have taught me.
- Tell me that I may sponge out the writing on this Stone.
- Oh, spirit... Please speak to me.
- Yes, the bedposts were his own, the bed was his own, the room was his own.
- I will live my life in the past, the present, and the future. (2)
- Oh, Jacob and Robert Marley!
[...]