"In case you are wondering. There are a few reasons why I didn't use it fully now. First off it would put you to sleep here in the chair, and secondly I don't know which room is yours because I wouldn't leave you here in the bar."

He makes a mental note.

"I believe you said twelve hours. That is how long the spell will last. It will also wake you up when it loses it's effect so you won't need to worry about slipping into one of your dreams."