Arranging and Rearranging

My bedroom is officially put together, I think. I have rearranged the room three times and hopefully it will stay this way. It is easy enough to reaarange minus one heavy and huge bookshelf. The problem I have been struggling with is that the ideal place for my bed is on top of the airconitioning vent. Lots of people have said I should not cover that up, even though it is so tempting. So last night was hopefully the last of the reaaranging of my bedroom at least for a little while. I need to move on to other rooms in the house.