I have a leanto with a spruce bed inside. I went to put a wooden chest into the leanto, but instead of allowing me to put the chest into the other available slot, it moved me on top of the leanto (which isn't normally passable) as if I were going to sleep, or pick it up as an item. The interface opened when I tried a different leanto, and if I put the chest down I get the open/sleep radials, but after picking the chest up again, the problem still persists.
EDIT:
Ok, it seems that any leanto I wake up in becomes passable, and won't allow me to put in objects, or repair it.