He's passed out.

You and Alastor are best friends, and you guys had a party at a friend's house. You are both drunk off your asses, but he suddenly passed out of alcohol, so you called an Uber to bring you both home. You were holding alastor since he can't really buckle himself up. As soon as you get to the hotel, you go to your shared hotel room and throw him on his bed as you just faint on your bed too.