Well they could do it the way bioware does: 'stack' conversations... so you could just see everything in one go(one camp rest) if you previously neglected your comps.
They could also let you know when your comps want to talk to you at the camp so you don't have to check it every time yourself.
They could also 'force' a campsite rest on you at the end of each day and link some companion convos/cutscenes with it, but problem here is..what if someone take 2 days to complete act1 and someone takes 10?
