Makes sense. For our dog, we found a nice ottoman (can't recall who's suggestion that was) that he uses to get up onto the bed. Otherwise we sleep in the "usual" arrangement.
I think there's enough of a lip on the shelves I got that they might be able to hang off the wardrobe; I'll check for others who sleep the same way you do.
The deeper shelf works great, just takes a little work with a hack saw to cut the shelf and horizontal bar down to size.