Bunny Picnic Question

[D'Snowth]

I'm really curious about some set construction from the Bunny Picnic: in Bean, Lugsy, and Twitch's bedroom, Lugsy and Twitch sleep in a bunk bed that's in a little carved-out area within the wall of their room... I'm really curious as to how exactly, and the specifics, as to how the puppeteers are able to work within this set up; I've tried to figure it out myself, but I'm not exactly sure how it would work for puppeteers would be able to perform the characters in my idea.

Those of you who follow or are familiar with my work, The Squirrely Squirrels have very similar sleeping arrangements inside their tree, however there's three of them instead of two, so I really need to figure all of this out.