how old is your father? How agile is he? Does he get up at night to use the restroom? What is the purpose of not letting him use the guest room? I'd like more explanation before making a comment. My SIL, niece and grandniece used our 5th wheel for guest room.......they loved it. My daughter and grandkids have used and love it, too. As for my parents.......I let them use our house. Getting in and out is hard for them, they NEED the bathroom at night, and my step father is NOT a camper, hates RV beds (his comment)......so..........