Hello,
I have a lop rabbit, normal size, I had it for 6months and she is 1year old. I don't like to keep her in a hutch cause she behave well staying free in my room, lately she started becoming very annoying at night, wishing to get out of the room. Do you think it would be a problem if every night I put her in a hutch? Can the hutch be outside in the garden? Or would it be too cold for her, since she is used to the warm in the house?

Where do you live? She is used to warm (and rabbits like warm temps).

If you live in a cold area, yes it will be a problem for the rabbit to be wam all day and thrown into a cold area. Will the hutch be heated ?