[There's spending long nights doing work and engrossed in reports and paperwork and using the excuse to lose hours of sleep, but staying up all night without any purpose to it and forced to this way is a little more difficult to get by. Maybe he'd even try to spend a while just staying in bed with his eyes closed, still as if sleep would come eventually. (The person sharing the bed next to him wouldn't be fooled in the least, but maybe he's stopped expecting he'd ever not catch on to him most of the time. Maybe Art's just looking to fool himself. It doesn't work either.)
Quiet sighs and some hours later into the night, he may be spotted wandering out for some air, walking not far from the hotel and looking up at the sky now and again.]