Heart Failure Transplant Patients

Hey Everyone!
I'm and senior nursing student and I've been working as a tech in a cardiac ICU for about 7months now.
As some of you know, ANY transplant list/requirements are quite vigorous. Our 1A
heart transplant patients cannot not bathe (no showers, only CHG wipes), leave the room,
and must have a catheter (I think it's a PA or Swan?? I cant remember ) in their neck ALL the time while waiting on a heart, which usually doesn't come for months.
I've got several patients right now on the waiting list and all of them have been in the hospital +3mos just waiting.
I can see them getting down and depressed :/
What can I do to brighten up their day?? Any suggestions?

I thought about baking cookies, but I don't want to go against their diets. I try and just listen and be open to their feelings but sometimes I cant find the right words.
What are some helpful/positive things you tell a patient?

Thanks in advance!