Mattresses and frames are separated from each other, so you can use different color combinations. 4 more colors have been added to help you create a truly cozy interior. The bunk bed is now available in 9 different designs. Your Sims will definitely love sleeping on them.
At some point a couple years ago, EAxis borked something and for some reason, newly activated servos would spawn looking like fleshy human sims, at least in my game.