I personally am not a fan of splitting cushions more than what is needed for configuring the trailer. Case in point is the Casita
Liberty, which has split cushions to convert the King Bed into a full bed plus a 2-person Dinette beside it. Then the split cushions make sense to me.
I plan on installing an exterior hatch in my Compact Jr to access the under bunk storage. I have that on my Fiber Stream
and find it more useful as we use sheets and blankets and tend to leave the King bed made up all of the time.
I think if I were to use sleeping bags instead, then I'd have a different opinion.