Do you already own the mirrored closet? Is the closet on your floor plan built in or moveable?

Sorry this is a US site so feet and inches are better . Not sure what you are wanting from us. I do not think a bed taking over the whole space is a good idea. Do you have Murphy beds where you are ? There are many that actually combine sofa with a bed and so pactical in a tiny space . Do you want to attract renters or are you planning to live ther e? Some more info please . Some pics of the space would be ahuge help too

You might want to consider a bed that can also function like a seating 'pit' for guests. Everything in a studio has to have multi purposes.

There are so many cool Murphy beds now that appear as a small sofa in the day and then pull down to be a proper bed. I would absolutely get something like that in your small space plus a chair I loved and kind of call it done.