Question: Is it prohibited or disliked for a person to sleep alone? Does a man sleeping alone in a hotel room, for example, enter into this prohibition?
Answer: “That which is apparent is that the prohibition is of dislike and not forbiddance. As for a person sleeping alone in a hotel room, then this is not considered from sleeping alone because if something occurs, it is possible for him to knock on the door [of another] if he has a problem. Like a sickness or other than that and the people come to him. However, the one who is in a place alone or in a room in a big house and something occurs and he needs one to give him first aid or needs someone to help him and rescue him, then he will not be able to”.
[Sharh Sunan Abi Dawood no. 585]
Faisal Ibn Abdul Qaadir Ibn Hassan