This is the 12987th most frequent Swedish word.
säng
Bed
The word 'säng' is used here to refer to the physical object where one lies down, indicating personal possession ('min säng').
Jag ligger i min säng och läser en bok.
I am lying in my bed reading a book.
The word 'sängen' is used in its definite form to refer to a specific bed that is being described.
Den nya sängen var mycket bekväm.
The new bed was very comfortable.
The word 'säng' is in its indefinite form here, used to refer generally to an object found in hotel rooms.