Celebrity Constellation upper berths of the inside cabin in the ceiling?

Hello, Everyone, This is our first time sailing with Celebrity Constellation, could someone please advise us if the upper berths in the inside cabins of the Celebrity Constellation folded up into the ceiling or are they located on the side walls of the cabin? We are concerned about the upper berths protruding out of the walls when not in use because we are going to have the beds apart in the cabin. Thank you for your help in advance.

The bunks will be recessed into the ceiling. EM