Ask the girl to agree to go to the hotel with you, but say nothing but sleep. Can we continue?

I still suggest not, unless she takes the initiative. A girl who agrees to go to the hotel with you shows that she loves you very much and is willing to be alone with you. I believe you won't hurt her and want to experience the peace of mind of sleeping with you. Don't be too aggressive, take your time. If you listen to her, she will take the initiative to accept you sooner or later.