We have a pioneer longreach.
The bunks fit lengthways, with room to move.
However we actually just cut 100mm off the length of them, and had the canvas cut down to suit so they now fit along the width, which suits better. They will fit side by side as well but not leaving much room.
We also have the attachable kids tent that we use for stays longer than a few nights, and that gives heaps of room.
Bunks fit with plenty of height, room next to them for stuff,and leaves the hard floor clear.