Inn is the only place we can logout/logon on the bed ^^; Logout/logon on the bed provides special emotion.
First of all, they need to let players logout/logon on House beds, it has been requested since housing was implemented.
To make it more "point", I would suggsest the player will receive an random item like retainer venture if the rested time for example over 8hr.
(the message can say you have found <item> on the bed/under the pillow..etc)
