Those aren't "sideways" in the same manner as some rooms on the Magic and Wonder. These rooms have standard interior layout with entry at the end off the short cross-hallways. Entry into the room puts one at the closets/bathrooms, further in is the "living room" area with the sofa, and at the far end of the room is the queen bed.
Enjoy your cruise!
The Fantasy and Dream don't have the sideways interior room layouts. The doors are in the small hallway between the blocks of rooms. If you see where the outline of the room is bumped in a little, that's there the doors are.