There is no way that it will stay pushed against the angled wall like that. What is the length and width of the room (ie 10x12, 12x14), not some drawing as a cut in of what you would see if this was a doll house.
As for at the foot of the bed, it would be better placing it in a cabinet and having it at the area in the first drawing. You can have rollers on the cabinet, that you can push it out of the way to store it when not using, and roll back if you wish at the foot of the bed. The other option is for them to turn the bed, but need a floor plan to see what the dimensions of the room is.