As much as I disliked seeing them at the mall, what about a leash to address the containment problem? Granted it's going to require constant supervision of one adult re: strangulation risk, but it frees the other adult to attend other issues.

Food: Nutella, peanutbutter, canned veggies?

Sleeping: strange environment, strange sensory input from every angle...good luck getting anyone to sleep soundly for any length of time...or:

https://www.youtube.com/watch?v=G8fbHpttc5A

HEH! All the usual disclaimers!