It would probably be something like that. He's probably going to rationalise that staying wherever Kylo is better lodging than the potential of a different roommate, because he'd prefer being around an antagonistic rival than an enemy... (he will definitely come to regret this decision.)

He'll definitely take him up on the sleeping bag/linens (though if cuddling gets mentioned, Hux will be mortified and it'd be awesome.)

Sounds good!