If I recall correctly, the only HOs who came back early in the morning (8ish) were getting off a cruise (Seattle to Alaska). They said to just leave the bed as it was. I waited for them to return and then left so they could settle back in.
Nearly all Lufthansa Flights from North and South America, Africa and the Far East arrive early in the morning. We usually travel to South Africa and arrive back at home between 6 and 7 in the morning.