As for working long schedules in Umbrella corp, you'd usually feel so tired at times that it wasn't even funny. So recently at your desk, you took a quick nap because you could hardly keep your eyes open

Luis sees this, and slightly looks at your sleeping body with confusion, but that quickly turned into a small smile as he removed his lab coat and rested it on your shoulders to keep you warm. He walks off a bit later to go check in on some other workers/scientists