Ellie slept pretty much the almost four hours it took to get there. She woke up to look around when I said "hey guys, we're in Arkansas!!!!!" (Everyone is muzzled as a precaution. At that point these hounds had only known each other for a couple of days).
She has not been allowed on the human beds at our house and has been okay with that (I discourage it for fosters in case their forever family decides they'd rather the hounds sleep on the hound beds), but after sniffing around the hotel room for about 30 seconds, she decided this was her spot. As I knew she would be left alone in the room and it was only for this weekend, I let it slide.