Looking for the title of a children's book?

Im looking for a childrens book. Heres what I remember about it:-It was probably published after 1975, but had to have been published before 1992-It w

I'm looking for a children's book. Here's what I remember about it:

-It was probably published after 1975, but had to have been published before 1992
-It was about a little girl, I believe her name was Lena. She was probably about 4-6
-There was a magic couch/sofa that steals things (keys, her baby brother's soother, etc.)
-The couch "mumbled" as it ate/stole things
-The couch tried to eat her sock that was attached to her foot, and in the process she got stuck
-She traded the couch/sofa something else in order to get her foot back
-She then started trading things the her family didn't need anymore to get back the things they wanted that the couch had taken
-And the had a wonderful relationship by the end!
-The illustrations were not smooth like Dr. Seuss (ish) but rather a bit more rough like Roald Dald's (ish)

PLEASE help. My mom and I have been going crazy trying to remember!

or:I'm looking for a children's book. Here's what I remember about it:-It was probably published after 1975, but had to have been published before 1992-It was about a little girl, I believe her name was Lena. She was probably about 4-6-There was a magic couch/sofa that steals things (keys, her baby brother's soother, etc.)-The couch \"mumbled\" as it ate/stole things-The couch tried to eat her sock that was attached to her foot, and in the process she got stuck-She traded the couch/sofa something else in order to get her foot back-She then started trading things the her family didn't need anymore to get back the things they wanted that the couch had taken-And the had a wonderful relationship by the end!-The illustrations were not smooth like Dr. Seuss (ish) but rather a bit more rough like Roald Dald's (ish)PLEASE help. My mom and I have been going crazy trying to remember!


or:The BFG. Or Matilda I guess.

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