What is the ruling on sleeping alone in a room next to the parents' rooms, or in an individual room facing another student's room in university housing?

Living alone is prohibited, as the Prophet, peace and blessings be upon him, forbade solitude, and that a man should not spend the night alone or travel alone. This prohibition is considered reprehensible by many scholars. However, there is no harm in living alone in a room adjacent to one's parents or to students' rooms in a safe place. Evidence for this is that the Mothers of the Believers used to sleep alone in their chambers, and the Prophet, peace and blessings be upon him, isolated himself in an attic room outside the homes of his wives.