The unspoken rules of sharing a sofa bed
Decide who opens and closes it, where bedding is stored, and when the room returns to living-room use. Keep the mechanism clear of bags and do not force it if it sticks; damaged furniture is an unnecessary source of tension.
Set rules for lights, alarms, phone calls, and early departures. If others use the room at night, agree on a quiet plan before the first evening. Clean bedding regularly and do not treat shared blankets or pillows as automatic.
The sofa bed works only when its daytime and nighttime purposes are respected equally.